Triadic Color Scheme Generation

triad_gen.py

#! /usr/bin/python

import sys
from grapefruit import Color

BRIGHT_LUM = 80
DARK_LUM = 60

def main():
    args = sys.argv[1:]
    if len(args) > 0:
        arg = args[0]
        c1 = Color.NewFromHtml(arg)
        c2, c3 = c1.TriadicScheme(120, 'rgb')

        for c in [c1, c2, c3]:
            (L, a, b) = c.lab
            bc = Color.NewFromLab(BRIGHT_LUM, a, b)
            dc = Color.NewFromLab(DARK_LUM, a, b)
            print(bc.html.upper())
            print(dc.html.upper())

if __name__ == '__main__':
    main()