Posted By

magicrebirth on 07/17/11

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html
color

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Last Edited at 07/17/11 08:22pm

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RGB Gradation Chart Generator

/ Published in: Python

[from the author's website]
I wrote this to better understand the relationship between RGB colors. Running it will generate a fairly large HTML file with all sorts of color transitions on it so you can see what is happening as colors are tweaked in different ways.

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import string

colors = ("00", "33", "66", "99", "CC", "FF")
masks = ("#00~00", "#~~00", "#~0000", "#~00~", "#0000~", "#00~~", "#FF~00", "#~~~")

f = open("colortest-gradation.html", 'w')
f.write("<html><head><title>RGB Gradation</title></head><body bgcolor='black'><tt>")

f.write("Gentle gradations through RGB color:\n")

bytes = ("00", "11", "22", "33", "44", "55", "66", "77", "88", "99", "AA", "BB", "CC", "DD", "EE", "FF")
halfbytes = ("00", "00", "11", "11", "22", "22", "33", "33", "44", "44", "55", "55", "66", "66", "77", "77")

for green in bytes:
 f.write( "<li>" )
 for white in bytes:
 c1 = "#" + white + green + white
 c2 = "#" + white + white + green
 c3 = "#" + green + white + white

f.write( "" )
 f.write( "T")
 f.write( "")

for white in bytes:
        c1 = "#" + white + green + white
        c2 = "#" + white + white + green
        c3 = "#" + green + white + white

f.write( "" )
 f.write( "T")
 f.write( "")

for white in bytes:
        c1 = "#" + white + green + white
        c2 = "#" + white + white + green
        c3 = "#" + green + white + white

f.write( "" )
 f.write( "T")
 f.write( "")

f.write( "</li>\n" )

f.write("Double all bytes to get real color (#0A0 --> #00AA00 etc)\n")

f.write("Green varied alone, Red/Blue varied together:\n")
for green in bytes:
 f.write( "<li>" )
 for white in bytes:
 c1 = "#" + white + green + white
 c2 = "#" + white + white + green
 c3 = "#" + green + white + white

cout = "#" + c1[1] + c1[3] + c1[5] + " "