this post was submitted on 30 Mar 2025
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Graphic Design

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Converting RGB values to percentages (lemmy.world)
submitted 2 months ago by 5teverin0@lemmy.world to c/graphic_design@lemmy.world
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I ran across a table of settings for Photoshop's channel mixer for simulating various analog film stocks. However, the RGB color values are given as numbers in the 0-255 range, and channel mixer uses percentages. Any idea how to convert the RGB values to plug them into channel mixer?

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[–] Nawor3565@lemmy.blahaj.zone 1 points 2 months ago

Divide the RGB values by 255? That will give you a number between 0 and 1, so just multiply that by 100 to get the percentage. Unless I'm misunderstanding what exactly you need to input into Photoshop.