diff --git a/kitty/char_grid.py b/kitty/char_grid.py
index 5ab4b52a0..e87bd588b 100644
--- a/kitty/char_grid.py
+++ b/kitty/char_grid.py
@@ -9,12 +9,19 @@ from ctypes import addressof, memmove, sizeof
 from threading import Lock
 
 from .config import build_ansi_color_table, defaults
-from .constants import get_boss, viewport_size, cell_size, ScreenGeometry, GLuint
-from .utils import get_logical_dpi, to_color, set_primary_selection, open_url, color_as_int, safe_print, color_from_int
+from .constants import (
+    GLuint, ScreenGeometry, cell_size, get_boss, viewport_size
+)
 from .fast_data_types import (
-    glUniform2ui, glUniform4f, glUniform1i, glUniform2f, glDrawArraysInstanced,
-    GL_TRIANGLE_FAN, glEnable, glDisable, GL_BLEND, glDrawArrays, ColorProfile,
-    CURSOR_BEAM, CURSOR_BLOCK, CURSOR_UNDERLINE, DATA_CELL_SIZE, GL_LINE_LOOP
+    CURSOR_BEAM, CURSOR_BLOCK, CURSOR_UNDERLINE, DATA_CELL_SIZE, GL_BLEND,
+    GL_LINE_LOOP, GL_TRIANGLE_FAN, ColorProfile, glDisable, glDrawArrays,
+    glDrawArraysInstanced, glEnable, glUniform1i, glUniform2f, glUniform2ui,
+    glUniform4f
+)
+from .rgb import to_color
+from .utils import (
+    color_as_int, color_from_int, get_logical_dpi, open_url, safe_print,
+    set_primary_selection
 )
 
 Cursor = namedtuple('Cursor', 'x y shape color blink')
diff --git a/kitty/config.py b/kitty/config.py
index 20c46b550..fbe784ba9 100644
--- a/kitty/config.py
+++ b/kitty/config.py
@@ -14,7 +14,8 @@ from . import fast_data_types as defines
 from .constants import config_dir
 from .fast_data_types import CURSOR_BEAM, CURSOR_BLOCK, CURSOR_UNDERLINE
 from .layout import all_layouts
-from .utils import safe_print, to_color
+from .rgb import to_color
+from .utils import safe_print
 
 key_pat = re.compile(r'([a-zA-Z][a-zA-Z0-9_-]*)\s+(.+)$')
 MINIMUM_FONT_SIZE = 6
diff --git a/kitty/rgb.py b/kitty/rgb.py
new file mode 100644
index 000000000..c34bb465a
--- /dev/null
+++ b/kitty/rgb.py
@@ -0,0 +1,816 @@
+#!/usr/bin/env python
+# vim:fileencoding=utf-8
+# License: GPL v3 Copyright: 2017, Kovid Goyal <kovid at kovidgoyal.net>
+
+import re
+from collections import namedtuple
+
+Color = namedtuple('Color', 'red green blue')
+
+color_pat = re.compile(r'^#([a-fA-F0-9]{3}|[a-fA-F0-9]{6})$')
+color_pat2 = re.compile(
+    r'rgb:([a-f0-9]{2})/([a-f0-9]{2})/([a-f0-9]{2})$', re.IGNORECASE
+)
+
+
+def to_color(raw, validate=False):
+    x = raw.strip().lower()
+    ans = color_names.get(x)
+    if ans is not None:
+        return ans
+    m = color_pat.match(x)
+    val = None
+    if m is not None:
+        val = m.group(1)
+        if len(val) == 3:
+            val = ''.join(2 * s for s in val)
+    else:
+        m = color_pat2.match(x)
+        if m is not None:
+            val = m.group(1) + m.group(2) + m.group(3)
+    if val is None:
+        if validate:
+            raise ValueError('Invalid color name: {}'.format(raw))
+        return
+    return Color(int(val[:2], 16), int(val[2:4], 16), int(val[4:], 16))
+
+
+# BEGIN_DATA_SECTION {{{
+color_names = {
+ 'alice blue': Color(240, 248, 255),
+ 'aliceblue': Color(240, 248, 255),
+ 'antique white': Color(250, 235, 215),
+ 'antiquewhite': Color(250, 235, 215),
+ 'antiquewhite1': Color(255, 239, 219),
+ 'antiquewhite2': Color(238, 223, 204),
+ 'antiquewhite3': Color(205, 192, 176),
+ 'antiquewhite4': Color(139, 131, 120),
+ 'aquamarine': Color(127, 255, 212),
+ 'aquamarine1': Color(127, 255, 212),
+ 'aquamarine2': Color(118, 238, 198),
+ 'aquamarine3': Color(102, 205, 170),
+ 'aquamarine4': Color(69, 139, 116),
+ 'azure': Color(240, 255, 255),
+ 'azure1': Color(240, 255, 255),
+ 'azure2': Color(224, 238, 238),
+ 'azure3': Color(193, 205, 205),
+ 'azure4': Color(131, 139, 139),
+ 'beige': Color(245, 245, 220),
+ 'bisque': Color(255, 228, 196),
+ 'bisque1': Color(255, 228, 196),
+ 'bisque2': Color(238, 213, 183),
+ 'bisque3': Color(205, 183, 158),
+ 'bisque4': Color(139, 125, 107),
+ 'black': Color(0, 0, 0),
+ 'blanched almond': Color(255, 235, 205),
+ 'blanchedalmond': Color(255, 235, 205),
+ 'blue': Color(0, 0, 255),
+ 'blue violet': Color(138, 43, 226),
+ 'blue1': Color(0, 0, 255),
+ 'blue2': Color(0, 0, 238),
+ 'blue3': Color(0, 0, 205),
+ 'blue4': Color(0, 0, 139),
+ 'blueviolet': Color(138, 43, 226),
+ 'brown': Color(165, 42, 42),
+ 'brown1': Color(255, 64, 64),
+ 'brown2': Color(238, 59, 59),
+ 'brown3': Color(205, 51, 51),
+ 'brown4': Color(139, 35, 35),
+ 'burlywood': Color(222, 184, 135),
+ 'burlywood1': Color(255, 211, 155),
+ 'burlywood2': Color(238, 197, 145),
+ 'burlywood3': Color(205, 170, 125),
+ 'burlywood4': Color(139, 115, 85),
+ 'cadet blue': Color(95, 158, 160),
+ 'cadetblue': Color(95, 158, 160),
+ 'cadetblue1': Color(152, 245, 255),
+ 'cadetblue2': Color(142, 229, 238),
+ 'cadetblue3': Color(122, 197, 205),
+ 'cadetblue4': Color(83, 134, 139),
+ 'chartreuse': Color(127, 255, 0),
+ 'chartreuse1': Color(127, 255, 0),
+ 'chartreuse2': Color(118, 238, 0),
+ 'chartreuse3': Color(102, 205, 0),
+ 'chartreuse4': Color(69, 139, 0),
+ 'chocolate': Color(210, 105, 30),
+ 'chocolate1': Color(255, 127, 36),
+ 'chocolate2': Color(238, 118, 33),
+ 'chocolate3': Color(205, 102, 29),
+ 'chocolate4': Color(139, 69, 19),
+ 'coral': Color(255, 127, 80),
+ 'coral1': Color(255, 114, 86),
+ 'coral2': Color(238, 106, 80),
+ 'coral3': Color(205, 91, 69),
+ 'coral4': Color(139, 62, 47),
+ 'cornflower blue': Color(100, 149, 237),
+ 'cornflowerblue': Color(100, 149, 237),
+ 'cornsilk': Color(255, 248, 220),
+ 'cornsilk1': Color(255, 248, 220),
+ 'cornsilk2': Color(238, 232, 205),
+ 'cornsilk3': Color(205, 200, 177),
+ 'cornsilk4': Color(139, 136, 120),
+ 'cyan': Color(0, 255, 255),
+ 'cyan1': Color(0, 255, 255),
+ 'cyan2': Color(0, 238, 238),
+ 'cyan3': Color(0, 205, 205),
+ 'cyan4': Color(0, 139, 139),
+ 'dark blue': Color(0, 0, 139),
+ 'dark cyan': Color(0, 139, 139),
+ 'dark goldenrod': Color(184, 134, 11),
+ 'dark gray': Color(169, 169, 169),
+ 'dark green': Color(0, 100, 0),
+ 'dark grey': Color(169, 169, 169),
+ 'dark khaki': Color(189, 183, 107),
+ 'dark magenta': Color(139, 0, 139),
+ 'dark olive green': Color(85, 107, 47),
+ 'dark orange': Color(255, 140, 0),
+ 'dark orchid': Color(153, 50, 204),
+ 'dark red': Color(139, 0, 0),
+ 'dark salmon': Color(233, 150, 122),
+ 'dark sea green': Color(143, 188, 143),
+ 'dark slate blue': Color(72, 61, 139),
+ 'dark slate gray': Color(47, 79, 79),
+ 'dark slate grey': Color(47, 79, 79),
+ 'dark turquoise': Color(0, 206, 209),
+ 'dark violet': Color(148, 0, 211),
+ 'darkblue': Color(0, 0, 139),
+ 'darkcyan': Color(0, 139, 139),
+ 'darkgoldenrod': Color(184, 134, 11),
+ 'darkgoldenrod1': Color(255, 185, 15),
+ 'darkgoldenrod2': Color(238, 173, 14),
+ 'darkgoldenrod3': Color(205, 149, 12),
+ 'darkgoldenrod4': Color(139, 101, 8),
+ 'darkgray': Color(169, 169, 169),
+ 'darkgreen': Color(0, 100, 0),
+ 'darkgrey': Color(169, 169, 169),
+ 'darkkhaki': Color(189, 183, 107),
+ 'darkmagenta': Color(139, 0, 139),
+ 'darkolivegreen': Color(85, 107, 47),
+ 'darkolivegreen1': Color(202, 255, 112),
+ 'darkolivegreen2': Color(188, 238, 104),
+ 'darkolivegreen3': Color(162, 205, 90),
+ 'darkolivegreen4': Color(110, 139, 61),
+ 'darkorange': Color(255, 140, 0),
+ 'darkorange1': Color(255, 127, 0),
+ 'darkorange2': Color(238, 118, 0),
+ 'darkorange3': Color(205, 102, 0),
+ 'darkorange4': Color(139, 69, 0),
+ 'darkorchid': Color(153, 50, 204),
+ 'darkorchid1': Color(191, 62, 255),
+ 'darkorchid2': Color(178, 58, 238),
+ 'darkorchid3': Color(154, 50, 205),
+ 'darkorchid4': Color(104, 34, 139),
+ 'darkred': Color(139, 0, 0),
+ 'darksalmon': Color(233, 150, 122),
+ 'darkseagreen': Color(143, 188, 143),
+ 'darkseagreen1': Color(193, 255, 193),
+ 'darkseagreen2': Color(180, 238, 180),
+ 'darkseagreen3': Color(155, 205, 155),
+ 'darkseagreen4': Color(105, 139, 105),
+ 'darkslateblue': Color(72, 61, 139),
+ 'darkslategray': Color(47, 79, 79),
+ 'darkslategray1': Color(151, 255, 255),
+ 'darkslategray2': Color(141, 238, 238),
+ 'darkslategray3': Color(121, 205, 205),
+ 'darkslategray4': Color(82, 139, 139),
+ 'darkslategrey': Color(47, 79, 79),
+ 'darkturquoise': Color(0, 206, 209),
+ 'darkviolet': Color(148, 0, 211),
+ 'debianred': Color(215, 7, 81),
+ 'deep pink': Color(255, 20, 147),
+ 'deep sky blue': Color(0, 191, 255),
+ 'deeppink': Color(255, 20, 147),
+ 'deeppink1': Color(255, 20, 147),
+ 'deeppink2': Color(238, 18, 137),
+ 'deeppink3': Color(205, 16, 118),
+ 'deeppink4': Color(139, 10, 80),
+ 'deepskyblue': Color(0, 191, 255),
+ 'deepskyblue1': Color(0, 191, 255),
+ 'deepskyblue2': Color(0, 178, 238),
+ 'deepskyblue3': Color(0, 154, 205),
+ 'deepskyblue4': Color(0, 104, 139),
+ 'dim gray': Color(105, 105, 105),
+ 'dim grey': Color(105, 105, 105),
+ 'dimgray': Color(105, 105, 105),
+ 'dimgrey': Color(105, 105, 105),
+ 'dodger blue': Color(30, 144, 255),
+ 'dodgerblue': Color(30, 144, 255),
+ 'dodgerblue1': Color(30, 144, 255),
+ 'dodgerblue2': Color(28, 134, 238),
+ 'dodgerblue3': Color(24, 116, 205),
+ 'dodgerblue4': Color(16, 78, 139),
+ 'firebrick': Color(178, 34, 34),
+ 'firebrick1': Color(255, 48, 48),
+ 'firebrick2': Color(238, 44, 44),
+ 'firebrick3': Color(205, 38, 38),
+ 'firebrick4': Color(139, 26, 26),
+ 'floral white': Color(255, 250, 240),
+ 'floralwhite': Color(255, 250, 240),
+ 'forest green': Color(34, 139, 34),
+ 'forestgreen': Color(34, 139, 34),
+ 'gainsboro': Color(220, 220, 220),
+ 'ghost white': Color(248, 248, 255),
+ 'ghostwhite': Color(248, 248, 255),
+ 'gold': Color(255, 215, 0),
+ 'gold1': Color(255, 215, 0),
+ 'gold2': Color(238, 201, 0),
+ 'gold3': Color(205, 173, 0),
+ 'gold4': Color(139, 117, 0),
+ 'goldenrod': Color(218, 165, 32),
+ 'goldenrod1': Color(255, 193, 37),
+ 'goldenrod2': Color(238, 180, 34),
+ 'goldenrod3': Color(205, 155, 29),
+ 'goldenrod4': Color(139, 105, 20),
+ 'gray': Color(190, 190, 190),
+ 'gray0': Color(0, 0, 0),
+ 'gray1': Color(3, 3, 3),
+ 'gray10': Color(26, 26, 26),
+ 'gray100': Color(255, 255, 255),
+ 'gray11': Color(28, 28, 28),
+ 'gray12': Color(31, 31, 31),
+ 'gray13': Color(33, 33, 33),
+ 'gray14': Color(36, 36, 36),
+ 'gray15': Color(38, 38, 38),
+ 'gray16': Color(41, 41, 41),
+ 'gray17': Color(43, 43, 43),
+ 'gray18': Color(46, 46, 46),
+ 'gray19': Color(48, 48, 48),
+ 'gray2': Color(5, 5, 5),
+ 'gray20': Color(51, 51, 51),
+ 'gray21': Color(54, 54, 54),
+ 'gray22': Color(56, 56, 56),
+ 'gray23': Color(59, 59, 59),
+ 'gray24': Color(61, 61, 61),
+ 'gray25': Color(64, 64, 64),
+ 'gray26': Color(66, 66, 66),
+ 'gray27': Color(69, 69, 69),
+ 'gray28': Color(71, 71, 71),
+ 'gray29': Color(74, 74, 74),
+ 'gray3': Color(8, 8, 8),
+ 'gray30': Color(77, 77, 77),
+ 'gray31': Color(79, 79, 79),
+ 'gray32': Color(82, 82, 82),
+ 'gray33': Color(84, 84, 84),
+ 'gray34': Color(87, 87, 87),
+ 'gray35': Color(89, 89, 89),
+ 'gray36': Color(92, 92, 92),
+ 'gray37': Color(94, 94, 94),
+ 'gray38': Color(97, 97, 97),
+ 'gray39': Color(99, 99, 99),
+ 'gray4': Color(10, 10, 10),
+ 'gray40': Color(102, 102, 102),
+ 'gray41': Color(105, 105, 105),
+ 'gray42': Color(107, 107, 107),
+ 'gray43': Color(110, 110, 110),
+ 'gray44': Color(112, 112, 112),
+ 'gray45': Color(115, 115, 115),
+ 'gray46': Color(117, 117, 117),
+ 'gray47': Color(120, 120, 120),
+ 'gray48': Color(122, 122, 122),
+ 'gray49': Color(125, 125, 125),
+ 'gray5': Color(13, 13, 13),
+ 'gray50': Color(127, 127, 127),
+ 'gray51': Color(130, 130, 130),
+ 'gray52': Color(133, 133, 133),
+ 'gray53': Color(135, 135, 135),
+ 'gray54': Color(138, 138, 138),
+ 'gray55': Color(140, 140, 140),
+ 'gray56': Color(143, 143, 143),
+ 'gray57': Color(145, 145, 145),
+ 'gray58': Color(148, 148, 148),
+ 'gray59': Color(150, 150, 150),
+ 'gray6': Color(15, 15, 15),
+ 'gray60': Color(153, 153, 153),
+ 'gray61': Color(156, 156, 156),
+ 'gray62': Color(158, 158, 158),
+ 'gray63': Color(161, 161, 161),
+ 'gray64': Color(163, 163, 163),
+ 'gray65': Color(166, 166, 166),
+ 'gray66': Color(168, 168, 168),
+ 'gray67': Color(171, 171, 171),
+ 'gray68': Color(173, 173, 173),
+ 'gray69': Color(176, 176, 176),
+ 'gray7': Color(18, 18, 18),
+ 'gray70': Color(179, 179, 179),
+ 'gray71': Color(181, 181, 181),
+ 'gray72': Color(184, 184, 184),
+ 'gray73': Color(186, 186, 186),
+ 'gray74': Color(189, 189, 189),
+ 'gray75': Color(191, 191, 191),
+ 'gray76': Color(194, 194, 194),
+ 'gray77': Color(196, 196, 196),
+ 'gray78': Color(199, 199, 199),
+ 'gray79': Color(201, 201, 201),
+ 'gray8': Color(20, 20, 20),
+ 'gray80': Color(204, 204, 204),
+ 'gray81': Color(207, 207, 207),
+ 'gray82': Color(209, 209, 209),
+ 'gray83': Color(212, 212, 212),
+ 'gray84': Color(214, 214, 214),
+ 'gray85': Color(217, 217, 217),
+ 'gray86': Color(219, 219, 219),
+ 'gray87': Color(222, 222, 222),
+ 'gray88': Color(224, 224, 224),
+ 'gray89': Color(227, 227, 227),
+ 'gray9': Color(23, 23, 23),
+ 'gray90': Color(229, 229, 229),
+ 'gray91': Color(232, 232, 232),
+ 'gray92': Color(235, 235, 235),
+ 'gray93': Color(237, 237, 237),
+ 'gray94': Color(240, 240, 240),
+ 'gray95': Color(242, 242, 242),
+ 'gray96': Color(245, 245, 245),
+ 'gray97': Color(247, 247, 247),
+ 'gray98': Color(250, 250, 250),
+ 'gray99': Color(252, 252, 252),
+ 'green': Color(0, 255, 0),
+ 'green yellow': Color(173, 255, 47),
+ 'green1': Color(0, 255, 0),
+ 'green2': Color(0, 238, 0),
+ 'green3': Color(0, 205, 0),
+ 'green4': Color(0, 139, 0),
+ 'greenyellow': Color(173, 255, 47),
+ 'grey': Color(190, 190, 190),
+ 'grey0': Color(0, 0, 0),
+ 'grey1': Color(3, 3, 3),
+ 'grey10': Color(26, 26, 26),
+ 'grey100': Color(255, 255, 255),
+ 'grey11': Color(28, 28, 28),
+ 'grey12': Color(31, 31, 31),
+ 'grey13': Color(33, 33, 33),
+ 'grey14': Color(36, 36, 36),
+ 'grey15': Color(38, 38, 38),
+ 'grey16': Color(41, 41, 41),
+ 'grey17': Color(43, 43, 43),
+ 'grey18': Color(46, 46, 46),
+ 'grey19': Color(48, 48, 48),
+ 'grey2': Color(5, 5, 5),
+ 'grey20': Color(51, 51, 51),
+ 'grey21': Color(54, 54, 54),
+ 'grey22': Color(56, 56, 56),
+ 'grey23': Color(59, 59, 59),
+ 'grey24': Color(61, 61, 61),
+ 'grey25': Color(64, 64, 64),
+ 'grey26': Color(66, 66, 66),
+ 'grey27': Color(69, 69, 69),
+ 'grey28': Color(71, 71, 71),
+ 'grey29': Color(74, 74, 74),
+ 'grey3': Color(8, 8, 8),
+ 'grey30': Color(77, 77, 77),
+ 'grey31': Color(79, 79, 79),
+ 'grey32': Color(82, 82, 82),
+ 'grey33': Color(84, 84, 84),
+ 'grey34': Color(87, 87, 87),
+ 'grey35': Color(89, 89, 89),
+ 'grey36': Color(92, 92, 92),
+ 'grey37': Color(94, 94, 94),
+ 'grey38': Color(97, 97, 97),
+ 'grey39': Color(99, 99, 99),
+ 'grey4': Color(10, 10, 10),
+ 'grey40': Color(102, 102, 102),
+ 'grey41': Color(105, 105, 105),
+ 'grey42': Color(107, 107, 107),
+ 'grey43': Color(110, 110, 110),
+ 'grey44': Color(112, 112, 112),
+ 'grey45': Color(115, 115, 115),
+ 'grey46': Color(117, 117, 117),
+ 'grey47': Color(120, 120, 120),
+ 'grey48': Color(122, 122, 122),
+ 'grey49': Color(125, 125, 125),
+ 'grey5': Color(13, 13, 13),
+ 'grey50': Color(127, 127, 127),
+ 'grey51': Color(130, 130, 130),
+ 'grey52': Color(133, 133, 133),
+ 'grey53': Color(135, 135, 135),
+ 'grey54': Color(138, 138, 138),
+ 'grey55': Color(140, 140, 140),
+ 'grey56': Color(143, 143, 143),
+ 'grey57': Color(145, 145, 145),
+ 'grey58': Color(148, 148, 148),
+ 'grey59': Color(150, 150, 150),
+ 'grey6': Color(15, 15, 15),
+ 'grey60': Color(153, 153, 153),
+ 'grey61': Color(156, 156, 156),
+ 'grey62': Color(158, 158, 158),
+ 'grey63': Color(161, 161, 161),
+ 'grey64': Color(163, 163, 163),
+ 'grey65': Color(166, 166, 166),
+ 'grey66': Color(168, 168, 168),
+ 'grey67': Color(171, 171, 171),
+ 'grey68': Color(173, 173, 173),
+ 'grey69': Color(176, 176, 176),
+ 'grey7': Color(18, 18, 18),
+ 'grey70': Color(179, 179, 179),
+ 'grey71': Color(181, 181, 181),
+ 'grey72': Color(184, 184, 184),
+ 'grey73': Color(186, 186, 186),
+ 'grey74': Color(189, 189, 189),
+ 'grey75': Color(191, 191, 191),
+ 'grey76': Color(194, 194, 194),
+ 'grey77': Color(196, 196, 196),
+ 'grey78': Color(199, 199, 199),
+ 'grey79': Color(201, 201, 201),
+ 'grey8': Color(20, 20, 20),
+ 'grey80': Color(204, 204, 204),
+ 'grey81': Color(207, 207, 207),
+ 'grey82': Color(209, 209, 209),
+ 'grey83': Color(212, 212, 212),
+ 'grey84': Color(214, 214, 214),
+ 'grey85': Color(217, 217, 217),
+ 'grey86': Color(219, 219, 219),
+ 'grey87': Color(222, 222, 222),
+ 'grey88': Color(224, 224, 224),
+ 'grey89': Color(227, 227, 227),
+ 'grey9': Color(23, 23, 23),
+ 'grey90': Color(229, 229, 229),
+ 'grey91': Color(232, 232, 232),
+ 'grey92': Color(235, 235, 235),
+ 'grey93': Color(237, 237, 237),
+ 'grey94': Color(240, 240, 240),
+ 'grey95': Color(242, 242, 242),
+ 'grey96': Color(245, 245, 245),
+ 'grey97': Color(247, 247, 247),
+ 'grey98': Color(250, 250, 250),
+ 'grey99': Color(252, 252, 252),
+ 'honeydew': Color(240, 255, 240),
+ 'honeydew1': Color(240, 255, 240),
+ 'honeydew2': Color(224, 238, 224),
+ 'honeydew3': Color(193, 205, 193),
+ 'honeydew4': Color(131, 139, 131),
+ 'hot pink': Color(255, 105, 180),
+ 'hotpink': Color(255, 105, 180),
+ 'hotpink1': Color(255, 110, 180),
+ 'hotpink2': Color(238, 106, 167),
+ 'hotpink3': Color(205, 96, 144),
+ 'hotpink4': Color(139, 58, 98),
+ 'indian red': Color(205, 92, 92),
+ 'indianred': Color(205, 92, 92),
+ 'indianred1': Color(255, 106, 106),
+ 'indianred2': Color(238, 99, 99),
+ 'indianred3': Color(205, 85, 85),
+ 'indianred4': Color(139, 58, 58),
+ 'ivory': Color(255, 255, 240),
+ 'ivory1': Color(255, 255, 240),
+ 'ivory2': Color(238, 238, 224),
+ 'ivory3': Color(205, 205, 193),
+ 'ivory4': Color(139, 139, 131),
+ 'khaki': Color(240, 230, 140),
+ 'khaki1': Color(255, 246, 143),
+ 'khaki2': Color(238, 230, 133),
+ 'khaki3': Color(205, 198, 115),
+ 'khaki4': Color(139, 134, 78),
+ 'lavender': Color(230, 230, 250),
+ 'lavender blush': Color(255, 240, 245),
+ 'lavenderblush': Color(255, 240, 245),
+ 'lavenderblush1': Color(255, 240, 245),
+ 'lavenderblush2': Color(238, 224, 229),
+ 'lavenderblush3': Color(205, 193, 197),
+ 'lavenderblush4': Color(139, 131, 134),
+ 'lawn green': Color(124, 252, 0),
+ 'lawngreen': Color(124, 252, 0),
+ 'lemon chiffon': Color(255, 250, 205),
+ 'lemonchiffon': Color(255, 250, 205),
+ 'lemonchiffon1': Color(255, 250, 205),
+ 'lemonchiffon2': Color(238, 233, 191),
+ 'lemonchiffon3': Color(205, 201, 165),
+ 'lemonchiffon4': Color(139, 137, 112),
+ 'light blue': Color(173, 216, 230),
+ 'light coral': Color(240, 128, 128),
+ 'light cyan': Color(224, 255, 255),
+ 'light goldenrod': Color(238, 221, 130),
+ 'light goldenrod yellow': Color(250, 250, 210),
+ 'light gray': Color(211, 211, 211),
+ 'light green': Color(144, 238, 144),
+ 'light grey': Color(211, 211, 211),
+ 'light pink': Color(255, 182, 193),
+ 'light salmon': Color(255, 160, 122),
+ 'light sea green': Color(32, 178, 170),
+ 'light sky blue': Color(135, 206, 250),
+ 'light slate blue': Color(132, 112, 255),
+ 'light slate gray': Color(119, 136, 153),
+ 'light slate grey': Color(119, 136, 153),
+ 'light steel blue': Color(176, 196, 222),
+ 'light yellow': Color(255, 255, 224),
+ 'lightblue': Color(173, 216, 230),
+ 'lightblue1': Color(191, 239, 255),
+ 'lightblue2': Color(178, 223, 238),
+ 'lightblue3': Color(154, 192, 205),
+ 'lightblue4': Color(104, 131, 139),
+ 'lightcoral': Color(240, 128, 128),
+ 'lightcyan': Color(224, 255, 255),
+ 'lightcyan1': Color(224, 255, 255),
+ 'lightcyan2': Color(209, 238, 238),
+ 'lightcyan3': Color(180, 205, 205),
+ 'lightcyan4': Color(122, 139, 139),
+ 'lightgoldenrod': Color(238, 221, 130),
+ 'lightgoldenrod1': Color(255, 236, 139),
+ 'lightgoldenrod2': Color(238, 220, 130),
+ 'lightgoldenrod3': Color(205, 190, 112),
+ 'lightgoldenrod4': Color(139, 129, 76),
+ 'lightgoldenrodyellow': Color(250, 250, 210),
+ 'lightgray': Color(211, 211, 211),
+ 'lightgreen': Color(144, 238, 144),
+ 'lightgrey': Color(211, 211, 211),
+ 'lightpink': Color(255, 182, 193),
+ 'lightpink1': Color(255, 174, 185),
+ 'lightpink2': Color(238, 162, 173),
+ 'lightpink3': Color(205, 140, 149),
+ 'lightpink4': Color(139, 95, 101),
+ 'lightsalmon': Color(255, 160, 122),
+ 'lightsalmon1': Color(255, 160, 122),
+ 'lightsalmon2': Color(238, 149, 114),
+ 'lightsalmon3': Color(205, 129, 98),
+ 'lightsalmon4': Color(139, 87, 66),
+ 'lightseagreen': Color(32, 178, 170),
+ 'lightskyblue': Color(135, 206, 250),
+ 'lightskyblue1': Color(176, 226, 255),
+ 'lightskyblue2': Color(164, 211, 238),
+ 'lightskyblue3': Color(141, 182, 205),
+ 'lightskyblue4': Color(96, 123, 139),
+ 'lightslateblue': Color(132, 112, 255),
+ 'lightslategray': Color(119, 136, 153),
+ 'lightslategrey': Color(119, 136, 153),
+ 'lightsteelblue': Color(176, 196, 222),
+ 'lightsteelblue1': Color(202, 225, 255),
+ 'lightsteelblue2': Color(188, 210, 238),
+ 'lightsteelblue3': Color(162, 181, 205),
+ 'lightsteelblue4': Color(110, 123, 139),
+ 'lightyellow': Color(255, 255, 224),
+ 'lightyellow1': Color(255, 255, 224),
+ 'lightyellow2': Color(238, 238, 209),
+ 'lightyellow3': Color(205, 205, 180),
+ 'lightyellow4': Color(139, 139, 122),
+ 'lime green': Color(50, 205, 50),
+ 'limegreen': Color(50, 205, 50),
+ 'linen': Color(250, 240, 230),
+ 'magenta': Color(255, 0, 255),
+ 'magenta1': Color(255, 0, 255),
+ 'magenta2': Color(238, 0, 238),
+ 'magenta3': Color(205, 0, 205),
+ 'magenta4': Color(139, 0, 139),
+ 'maroon': Color(176, 48, 96),
+ 'maroon1': Color(255, 52, 179),
+ 'maroon2': Color(238, 48, 167),
+ 'maroon3': Color(205, 41, 144),
+ 'maroon4': Color(139, 28, 98),
+ 'medium aquamarine': Color(102, 205, 170),
+ 'medium blue': Color(0, 0, 205),
+ 'medium orchid': Color(186, 85, 211),
+ 'medium purple': Color(147, 112, 219),
+ 'medium sea green': Color(60, 179, 113),
+ 'medium slate blue': Color(123, 104, 238),
+ 'medium spring green': Color(0, 250, 154),
+ 'medium turquoise': Color(72, 209, 204),
+ 'medium violet red': Color(199, 21, 133),
+ 'mediumaquamarine': Color(102, 205, 170),
+ 'mediumblue': Color(0, 0, 205),
+ 'mediumorchid': Color(186, 85, 211),
+ 'mediumorchid1': Color(224, 102, 255),
+ 'mediumorchid2': Color(209, 95, 238),
+ 'mediumorchid3': Color(180, 82, 205),
+ 'mediumorchid4': Color(122, 55, 139),
+ 'mediumpurple': Color(147, 112, 219),
+ 'mediumpurple1': Color(171, 130, 255),
+ 'mediumpurple2': Color(159, 121, 238),
+ 'mediumpurple3': Color(137, 104, 205),
+ 'mediumpurple4': Color(93, 71, 139),
+ 'mediumseagreen': Color(60, 179, 113),
+ 'mediumslateblue': Color(123, 104, 238),
+ 'mediumspringgreen': Color(0, 250, 154),
+ 'mediumturquoise': Color(72, 209, 204),
+ 'mediumvioletred': Color(199, 21, 133),
+ 'midnight blue': Color(25, 25, 112),
+ 'midnightblue': Color(25, 25, 112),
+ 'mint cream': Color(245, 255, 250),
+ 'mintcream': Color(245, 255, 250),
+ 'misty rose': Color(255, 228, 225),
+ 'mistyrose': Color(255, 228, 225),
+ 'mistyrose1': Color(255, 228, 225),
+ 'mistyrose2': Color(238, 213, 210),
+ 'mistyrose3': Color(205, 183, 181),
+ 'mistyrose4': Color(139, 125, 123),
+ 'moccasin': Color(255, 228, 181),
+ 'navajo white': Color(255, 222, 173),
+ 'navajowhite': Color(255, 222, 173),
+ 'navajowhite1': Color(255, 222, 173),
+ 'navajowhite2': Color(238, 207, 161),
+ 'navajowhite3': Color(205, 179, 139),
+ 'navajowhite4': Color(139, 121, 94),
+ 'navy': Color(0, 0, 128),
+ 'navy blue': Color(0, 0, 128),
+ 'navyblue': Color(0, 0, 128),
+ 'old lace': Color(253, 245, 230),
+ 'oldlace': Color(253, 245, 230),
+ 'olive drab': Color(107, 142, 35),
+ 'olivedrab': Color(107, 142, 35),
+ 'olivedrab1': Color(192, 255, 62),
+ 'olivedrab2': Color(179, 238, 58),
+ 'olivedrab3': Color(154, 205, 50),
+ 'olivedrab4': Color(105, 139, 34),
+ 'orange': Color(255, 165, 0),
+ 'orange red': Color(255, 69, 0),
+ 'orange1': Color(255, 165, 0),
+ 'orange2': Color(238, 154, 0),
+ 'orange3': Color(205, 133, 0),
+ 'orange4': Color(139, 90, 0),
+ 'orangered': Color(255, 69, 0),
+ 'orangered1': Color(255, 69, 0),
+ 'orangered2': Color(238, 64, 0),
+ 'orangered3': Color(205, 55, 0),
+ 'orangered4': Color(139, 37, 0),
+ 'orchid': Color(218, 112, 214),
+ 'orchid1': Color(255, 131, 250),
+ 'orchid2': Color(238, 122, 233),
+ 'orchid3': Color(205, 105, 201),
+ 'orchid4': Color(139, 71, 137),
+ 'pale goldenrod': Color(238, 232, 170),
+ 'pale green': Color(152, 251, 152),
+ 'pale turquoise': Color(175, 238, 238),
+ 'pale violet red': Color(219, 112, 147),
+ 'palegoldenrod': Color(238, 232, 170),
+ 'palegreen': Color(152, 251, 152),
+ 'palegreen1': Color(154, 255, 154),
+ 'palegreen2': Color(144, 238, 144),
+ 'palegreen3': Color(124, 205, 124),
+ 'palegreen4': Color(84, 139, 84),
+ 'paleturquoise': Color(175, 238, 238),
+ 'paleturquoise1': Color(187, 255, 255),
+ 'paleturquoise2': Color(174, 238, 238),
+ 'paleturquoise3': Color(150, 205, 205),
+ 'paleturquoise4': Color(102, 139, 139),
+ 'palevioletred': Color(219, 112, 147),
+ 'palevioletred1': Color(255, 130, 171),
+ 'palevioletred2': Color(238, 121, 159),
+ 'palevioletred3': Color(205, 104, 137),
+ 'palevioletred4': Color(139, 71, 93),
+ 'papaya whip': Color(255, 239, 213),
+ 'papayawhip': Color(255, 239, 213),
+ 'peach puff': Color(255, 218, 185),
+ 'peachpuff': Color(255, 218, 185),
+ 'peachpuff1': Color(255, 218, 185),
+ 'peachpuff2': Color(238, 203, 173),
+ 'peachpuff3': Color(205, 175, 149),
+ 'peachpuff4': Color(139, 119, 101),
+ 'peru': Color(205, 133, 63),
+ 'pink': Color(255, 192, 203),
+ 'pink1': Color(255, 181, 197),
+ 'pink2': Color(238, 169, 184),
+ 'pink3': Color(205, 145, 158),
+ 'pink4': Color(139, 99, 108),
+ 'plum': Color(221, 160, 221),
+ 'plum1': Color(255, 187, 255),
+ 'plum2': Color(238, 174, 238),
+ 'plum3': Color(205, 150, 205),
+ 'plum4': Color(139, 102, 139),
+ 'powder blue': Color(176, 224, 230),
+ 'powderblue': Color(176, 224, 230),
+ 'purple': Color(160, 32, 240),
+ 'purple1': Color(155, 48, 255),
+ 'purple2': Color(145, 44, 238),
+ 'purple3': Color(125, 38, 205),
+ 'purple4': Color(85, 26, 139),
+ 'red': Color(255, 0, 0),
+ 'red1': Color(255, 0, 0),
+ 'red2': Color(238, 0, 0),
+ 'red3': Color(205, 0, 0),
+ 'red4': Color(139, 0, 0),
+ 'rosy brown': Color(188, 143, 143),
+ 'rosybrown': Color(188, 143, 143),
+ 'rosybrown1': Color(255, 193, 193),
+ 'rosybrown2': Color(238, 180, 180),
+ 'rosybrown3': Color(205, 155, 155),
+ 'rosybrown4': Color(139, 105, 105),
+ 'royal blue': Color(65, 105, 225),
+ 'royalblue': Color(65, 105, 225),
+ 'royalblue1': Color(72, 118, 255),
+ 'royalblue2': Color(67, 110, 238),
+ 'royalblue3': Color(58, 95, 205),
+ 'royalblue4': Color(39, 64, 139),
+ 'saddle brown': Color(139, 69, 19),
+ 'saddlebrown': Color(139, 69, 19),
+ 'salmon': Color(250, 128, 114),
+ 'salmon1': Color(255, 140, 105),
+ 'salmon2': Color(238, 130, 98),
+ 'salmon3': Color(205, 112, 84),
+ 'salmon4': Color(139, 76, 57),
+ 'sandy brown': Color(244, 164, 96),
+ 'sandybrown': Color(244, 164, 96),
+ 'sea green': Color(46, 139, 87),
+ 'seagreen': Color(46, 139, 87),
+ 'seagreen1': Color(84, 255, 159),
+ 'seagreen2': Color(78, 238, 148),
+ 'seagreen3': Color(67, 205, 128),
+ 'seagreen4': Color(46, 139, 87),
+ 'seashell': Color(255, 245, 238),
+ 'seashell1': Color(255, 245, 238),
+ 'seashell2': Color(238, 229, 222),
+ 'seashell3': Color(205, 197, 191),
+ 'seashell4': Color(139, 134, 130),
+ 'sienna': Color(160, 82, 45),
+ 'sienna1': Color(255, 130, 71),
+ 'sienna2': Color(238, 121, 66),
+ 'sienna3': Color(205, 104, 57),
+ 'sienna4': Color(139, 71, 38),
+ 'sky blue': Color(135, 206, 235),
+ 'skyblue': Color(135, 206, 235),
+ 'skyblue1': Color(135, 206, 255),
+ 'skyblue2': Color(126, 192, 238),
+ 'skyblue3': Color(108, 166, 205),
+ 'skyblue4': Color(74, 112, 139),
+ 'slate blue': Color(106, 90, 205),
+ 'slate gray': Color(112, 128, 144),
+ 'slate grey': Color(112, 128, 144),
+ 'slateblue': Color(106, 90, 205),
+ 'slateblue1': Color(131, 111, 255),
+ 'slateblue2': Color(122, 103, 238),
+ 'slateblue3': Color(105, 89, 205),
+ 'slateblue4': Color(71, 60, 139),
+ 'slategray': Color(112, 128, 144),
+ 'slategray1': Color(198, 226, 255),
+ 'slategray2': Color(185, 211, 238),
+ 'slategray3': Color(159, 182, 205),
+ 'slategray4': Color(108, 123, 139),
+ 'slategrey': Color(112, 128, 144),
+ 'snow': Color(255, 250, 250),
+ 'snow1': Color(255, 250, 250),
+ 'snow2': Color(238, 233, 233),
+ 'snow3': Color(205, 201, 201),
+ 'snow4': Color(139, 137, 137),
+ 'spring green': Color(0, 255, 127),
+ 'springgreen': Color(0, 255, 127),
+ 'springgreen1': Color(0, 255, 127),
+ 'springgreen2': Color(0, 238, 118),
+ 'springgreen3': Color(0, 205, 102),
+ 'springgreen4': Color(0, 139, 69),
+ 'steel blue': Color(70, 130, 180),
+ 'steelblue': Color(70, 130, 180),
+ 'steelblue1': Color(99, 184, 255),
+ 'steelblue2': Color(92, 172, 238),
+ 'steelblue3': Color(79, 148, 205),
+ 'steelblue4': Color(54, 100, 139),
+ 'tan': Color(210, 180, 140),
+ 'tan1': Color(255, 165, 79),
+ 'tan2': Color(238, 154, 73),
+ 'tan3': Color(205, 133, 63),
+ 'tan4': Color(139, 90, 43),
+ 'thistle': Color(216, 191, 216),
+ 'thistle1': Color(255, 225, 255),
+ 'thistle2': Color(238, 210, 238),
+ 'thistle3': Color(205, 181, 205),
+ 'thistle4': Color(139, 123, 139),
+ 'tomato': Color(255, 99, 71),
+ 'tomato1': Color(255, 99, 71),
+ 'tomato2': Color(238, 92, 66),
+ 'tomato3': Color(205, 79, 57),
+ 'tomato4': Color(139, 54, 38),
+ 'turquoise': Color(64, 224, 208),
+ 'turquoise1': Color(0, 245, 255),
+ 'turquoise2': Color(0, 229, 238),
+ 'turquoise3': Color(0, 197, 205),
+ 'turquoise4': Color(0, 134, 139),
+ 'violet': Color(238, 130, 238),
+ 'violet red': Color(208, 32, 144),
+ 'violetred': Color(208, 32, 144),
+ 'violetred1': Color(255, 62, 150),
+ 'violetred2': Color(238, 58, 140),
+ 'violetred3': Color(205, 50, 120),
+ 'violetred4': Color(139, 34, 82),
+ 'wheat': Color(245, 222, 179),
+ 'wheat1': Color(255, 231, 186),
+ 'wheat2': Color(238, 216, 174),
+ 'wheat3': Color(205, 186, 150),
+ 'wheat4': Color(139, 126, 102),
+ 'white': Color(255, 255, 255),
+ 'white smoke': Color(245, 245, 245),
+ 'whitesmoke': Color(245, 245, 245),
+ 'yellow': Color(255, 255, 0),
+ 'yellow green': Color(154, 205, 50),
+ 'yellow1': Color(255, 255, 0),
+ 'yellow2': Color(238, 238, 0),
+ 'yellow3': Color(205, 205, 0),
+ 'yellow4': Color(139, 139, 0),
+ 'yellowgreen': Color(154, 205, 50)}
+# END_DATA_SECTION }}}
+
+if __name__ == '__main__':
+    # Read RGB color table from specified rgb.txt file
+    import sys
+    import pprint
+    data = {}
+    for line in open(sys.argv[-1]):
+        line = line.strip()
+        if not line or line.startswith('!'):
+            continue
+        parts = line.split()
+        r, g, b = map(int, parts[:3])
+        name = ' '.join(parts[3:]).lower()
+        data[name] = data[name.replace(' ', '')] = r, g, b
+    data = pprint.pformat(data).replace('{', '{\n ').replace('(', 'Color(')
+    with open(__file__, 'r+') as src:
+        raw = src.read()
+        raw = re.sub(
+            r'^# BEGIN_DATA_SECTION {{{$.*^# END_DATA_SECTION }}}',
+            '# BEGIN_DATA_SECTION {{{\ncolor_names = %s\n# END_DATA_SECTION }}}' % data,
+            raw, flags=re.DOTALL | re.MULTILINE
+        )
+        src.seek(0), src.truncate(), src.write(raw)
diff --git a/kitty/utils.py b/kitty/utils.py
index c627a38d2..0381fe28c 100644
--- a/kitty/utils.py
+++ b/kitty/utils.py
@@ -9,13 +9,13 @@ import shlex
 import signal
 import string
 import subprocess
-from collections import namedtuple
 from contextlib import contextmanager
 from functools import lru_cache
 from time import monotonic
 
 from .constants import isosx
 from .fast_data_types import glfw_get_physical_dpi, wcwidth as wcwidth_impl
+from .rgb import Color, to_color
 
 
 def safe_print(*a, **k):
@@ -71,188 +71,6 @@ def get_dpi():
     return get_dpi.ans
 
 
-# Color names  {{{
-
-color_pat = re.compile(r'^#([a-fA-F0-9]{3}|[a-fA-F0-9]{6})$')
-color_pat2 = re.compile(
-    r'rgb:([a-f0-9]{2})/([a-f0-9]{2})/([a-f0-9]{2})$', re.IGNORECASE
-)
-
-color_names = {
-    'aliceblue': 'f0f8ff',
-    'antiquewhite': 'faebd7',
-    'aqua': '00ffff',
-    'aquamarine': '7fffd4',
-    'azure': 'f0ffff',
-    'beige': 'f5f5dc',
-    'bisque': 'ffe4c4',
-    'black': '000000',
-    'blanchedalmond': 'ffebcd',
-    'blue': '0000ff',
-    'blueviolet': '8a2be2',
-    'brown': 'a52a2a',
-    'burlywood': 'deb887',
-    'cadetblue': '5f9ea0',
-    'chartreuse': '7fff00',
-    'chocolate': 'd2691e',
-    'coral': 'ff7f50',
-    'cornflowerblue': '6495ed',
-    'cornsilk': 'fff8dc',
-    'crimson': 'dc143c',
-    'cyan': '00ffff',
-    'darkblue': '00008b',
-    'darkcyan': '008b8b',
-    'darkgoldenrod': 'b8860b',
-    'darkgray': 'a9a9a9',
-    'darkgrey': 'a9a9a9',
-    'darkgreen': '006400',
-    'darkkhaki': 'bdb76b',
-    'darkmagenta': '8b008b',
-    'darkolivegreen': '556b2f',
-    'darkorange': 'ff8c00',
-    'darkorchid': '9932cc',
-    'darkred': '8b0000',
-    'darksalmon': 'e9967a',
-    'darkseagreen': '8fbc8f',
-    'darkslateblue': '483d8b',
-    'darkslategray': '2f4f4f',
-    'darkslategrey': '2f4f4f',
-    'darkturquoise': '00ced1',
-    'darkviolet': '9400d3',
-    'deeppink': 'ff1493',
-    'deepskyblue': '00bfff',
-    'dimgray': '696969',
-    'dimgrey': '696969',
-    'dodgerblue': '1e90ff',
-    'firebrick': 'b22222',
-    'floralwhite': 'fffaf0',
-    'forestgreen': '228b22',
-    'fuchsia': 'ff00ff',
-    'gainsboro': 'dcdcdc',
-    'ghostwhite': 'f8f8ff',
-    'gold': 'ffd700',
-    'goldenrod': 'daa520',
-    'gray': '808080',
-    'grey': '808080',
-    'green': '008000',
-    'greenyellow': 'adff2f',
-    'honeydew': 'f0fff0',
-    'hotpink': 'ff69b4',
-    'indianred': 'cd5c5c',
-    'indigo': '4b0082',
-    'ivory': 'fffff0',
-    'khaki': 'f0e68c',
-    'lavender': 'e6e6fa',
-    'lavenderblush': 'fff0f5',
-    'lawngreen': '7cfc00',
-    'lemonchiffon': 'fffacd',
-    'lightblue': 'add8e6',
-    'lightcoral': 'f08080',
-    'lightcyan': 'e0ffff',
-    'lightgoldenrodyellow': 'fafad2',
-    'lightgray': 'd3d3d3',
-    'lightgrey': 'd3d3d3',
-    'lightgreen': '90ee90',
-    'lightpink': 'ffb6c1',
-    'lightsalmon': 'ffa07a',
-    'lightseagreen': '20b2aa',
-    'lightskyblue': '87cefa',
-    'lightslategray': '778899',
-    'lightslategrey': '778899',
-    'lightsteelblue': 'b0c4de',
-    'lightyellow': 'ffffe0',
-    'lime': '00ff00',
-    'limegreen': '32cd32',
-    'linen': 'faf0e6',
-    'magenta': 'ff00ff',
-    'maroon': '800000',
-    'mediumaquamarine': '66cdaa',
-    'mediumblue': '0000cd',
-    'mediumorchid': 'ba55d3',
-    'mediumpurple': '9370db',
-    'mediumseagreen': '3cb371',
-    'mediumslateblue': '7b68ee',
-    'mediumspringgreen': '00fa9a',
-    'mediumturquoise': '48d1cc',
-    'mediumvioletred': 'c71585',
-    'midnightblue': '191970',
-    'mintcream': 'f5fffa',
-    'mistyrose': 'ffe4e1',
-    'moccasin': 'ffe4b5',
-    'navajowhite': 'ffdead',
-    'navy': '000080',
-    'oldlace': 'fdf5e6',
-    'olive': '808000',
-    'olivedrab': '6b8e23',
-    'orange': 'ffa500',
-    'orangered': 'ff4500',
-    'orchid': 'da70d6',
-    'palegoldenrod': 'eee8aa',
-    'palegreen': '98fb98',
-    'paleturquoise': 'afeeee',
-    'palevioletred': 'db7093',
-    'papayawhip': 'ffefd5',
-    'peachpuff': 'ffdab9',
-    'per': 'cd853f',
-    'pink': 'ffc0cb',
-    'plum': 'dda0dd',
-    'powderblue': 'b0e0e6',
-    'purple': '800080',
-    'red': 'ff0000',
-    'rosybrown': 'bc8f8f',
-    'royalblue': '4169e1',
-    'saddlebrown': '8b4513',
-    'salmon': 'fa8072',
-    'sandybrown': 'f4a460',
-    'seagreen': '2e8b57',
-    'seashell': 'fff5ee',
-    'sienna': 'a0522d',
-    'silver': 'c0c0c0',
-    'skyblue': '87ceeb',
-    'slateblue': '6a5acd',
-    'slategray': '708090',
-    'slategrey': '708090',
-    'snow': 'fffafa',
-    'springgreen': '00ff7f',
-    'steelblue': '4682b4',
-    'tan': 'd2b48c',
-    'teal': '008080',
-    'thistle': 'd8bfd8',
-    'tomato': 'ff6347',
-    'turquoise': '40e0d0',
-    'violet': 'ee82ee',
-    'wheat': 'f5deb3',
-    'white': 'ffffff',
-    'whitesmoke': 'f5f5f5',
-    'yellow': 'ffff00',
-    'yellowgreen': '9acd32',
-}
-Color = namedtuple('Color', 'red green blue')
-
-# }}}
-
-
-def to_color(raw, validate=False):
-    x = raw.strip().lower()
-    m = color_pat.match(x)
-    val = None
-    if m is not None:
-        val = m.group(1)
-        if len(val) == 3:
-            val = ''.join(2 * s for s in val)
-    else:
-        m = color_pat2.match(x)
-        if m is not None:
-            val = m.group(1) + m.group(2) + m.group(3)
-        else:
-            val = color_names.get(x)
-    if val is None:
-        if validate:
-            raise ValueError('Invalid color name: {}'.format(raw))
-        return
-    return Color(int(val[:2], 16), int(val[2:4], 16), int(val[4:], 16))
-
-
 def color_as_int(val):
     return val[0] << 16 | val[1] << 8 | val[2]