How to convert Hex to RGB? (perl)

Question

How do I convert my hexidecimal colors (e.g., 0000FF, FF00FF) into arithmetic RGB format (e.g., 0 0 1, 1 0 1)?

I want to implement a command to do this in some of my perl scripts but I don't even know how to do it by hand.

Could someone please help me do this in perl or even show me how to do this by hand so I can come up with my own perl command?

Answer 1

Assuming you're trying to map 00..FF₁₆ to real numbers 0..1,

my @rgb = map $_ / 255, unpack 'C*', pack 'H*', $rgb_hex;

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• pack 'H*', changes "FF00FF" to "\xFF\x00\xFF".
• unpack 'C*', changes "\xFF\x00\xFF" to 0xFF, 0x00, 0xFF.
• map $_ / 255, changes 0xFF, 0x00, 0xFF to 0xFF/255, 0x00/255, 0xFF/255