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#!/usr/bin/perl
use warnings;
...
0F9 3F9 6F9 9F9 CF9 FF9 
0FC 3FC 6FC 9FC CFC FFC 
0FF 3FF 6FF 9FF CFF FFF

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C:\Code>perl web_safe_colors.pl
Enter a color value    : 1234
...
Closest variance fit is: 666600
Closest comdist  fit is: 666600
Closest minmax   fit is: 666600