1 files changed, 63 insertions, 0 deletions
diff --git a/tools/colors_find.py b/tools/colors_find.py
new file mode 100755
index 0000000..cf66ef9
--- /dev/null
+++ b/tools/colors_find.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+# vim:fileencoding=utf-8:noet
+from __future__ import (unicode_literals, division, absolute_import, print_function)
+
+import sys
+import os
+
+from colormath.color_objects import sRGBColor, LabColor
+from colormath.color_conversions import convert_color
+from colormath.color_diff import delta_e_cie2000
+
+
+def get_lab(name, rgb):
+	rgb = sRGBColor(
+		int(rgb[:2], 16), int(rgb[2:4], 16), int(rgb[4:6], 16),
+		is_upscaled=True
+	)
+	lab = convert_color(rgb, LabColor)
+	return name, lab
+
+
+with open(os.path.join(os.path.dirname(__file__), 'colors.map'), 'r') as f:
+	colors = [get_lab(*line.split('\t')) for line in f]
+
+
+ulab = get_lab(None, sys.argv[1])[1]
+
+
+def find_color(urgb, colors):
+	cur_distance = 3 * (255 ** 2 + 1)
+	cur_color = None
+	for color, clab in colors:
+		dist = delta_e_cie2000(ulab, clab)
+		if dist < cur_distance:
+			cur_distance = dist
+			cur_color = (color, clab)
+	return cur_color
+
+
+cur_color = find_color(ulab, colors)
+
+
+def lab_to_csi(lab):
+	rgb = convert_color(lab, sRGBColor)
+	colstr = ';2;' + ';'.join((str(i) for i in get_upscaled_values(rgb)))
+	return colstr + 'm'
+
+
+def get_upscaled_values(rgb):
+	return [min(max(0, i), 255) for i in rgb.get_upscaled_value_tuple()]
+
+
+def get_rgb(lab):
+	rgb = convert_color(lab, sRGBColor)
+	rgb = sRGBColor(*get_upscaled_values(rgb), is_upscaled=True)
+	return rgb.get_rgb_hex()[1:]
+
+print(get_rgb(ulab), ':', cur_color[0], ':', get_rgb(cur_color[1]))
+
+col_1 = lab_to_csi(ulab)
+col_2 = lab_to_csi(cur_color[1])
+sys.stdout.write('\033[48' + col_1 + '\033[38' + col_2 + 'abc\033[0m <-- bg:urgb, fg:crgb\n')
+sys.stdout.write('\033[48' + col_2 + '\033[38' + col_1 + 'abc\033[0m <-- bg:crgb, fg:urgb\n')