colormaker.py

#!/usr/bin/python

import colorsys

def ColorSpread(count, saturation, lightness):
    '''
Compute a stepped spectrum sequence of color values that are evenly 
distributed around the 360 degree hue wheel. Returns an array of rgb 
values in hex.

Arguments:
count		The desired number of colors
saturation	Color saturation level, from 0 to 1
lightness	Color lightness, from 0 to 1

IMPORTANT: all values must be expressed as floats, even if they are
round numbers

EXAMPLES:
>>> a = ColorSpread(6.0, .7, .8)
>>> a
['F07575', 'F0F075', '75F075', '75F0F0', '7575F0', 'F075F0']
>>> for x in a:
...     print "#%s" % (x)
... 
#F07575
#F0F075
#75F075
#75F0F0
#7575F0
#F075F0
    '''
    step = 1.0 / count
    hue = 0 
    colors = []
    for i in range(int(count)):
	dec = colorsys.hls_to_rgb(hue, saturation, lightness)
	hue = hue + step
	hexvals = []
	for c in dec:
	    x = c * 256
	    hexvals.append("%X" % x)
	color = "%s%s%s" % (hexvals[0], hexvals[1], hexvals[2])
	colors.append(color)
    return colors

if __name__ == "__main__":
    import doctest
    doctest.testmod()