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xterm_colors = []
# This is ripped out of pygments
# I leave out the 16 standard colors since people tend to re-define them to their liking.
# colors 16..232: the 6x6x6 color cube
_valuerange = (0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff)
for i in range(217):
r = _valuerange[(i // 36) % 6]
g = _valuerange[(i // 6) % 6]
b = _valuerange[i % 6]
xterm_colors.append((r, g, b))
# colors 233..253: grayscale
for i in range(1, 24):
v = 8 + i * 10
xterm_colors.append((v, v, v))
def closest_color(r, g, b):
return 16+min([ ((r-rt)**2+(g-gt)**2+(b-bt)**2, i) for i,(rt,gt,bt) in enumerate(xterm_colors) ])[1]
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