What RGB range is used?

R, G, B are 0–255. Resulting C, M, Y, K are 0–100%.

Why do CMYK values differ from RGB?

CMYK is subtractive (print); RGB is additive (screen). Black (K) is used to reduce ink.

Convert RGB color values to CMYK (0–100%) for print. Client-side conversion.

R (0–255)

G (0–255)

B (0–255)

What RGB range is used?: R, G, B are 0–255. Resulting C, M, Y, K are 0–100%.
Why do CMYK values differ from RGB?: CMYK is subtractive (print); RGB is additive (screen). Black (K) is used to reduce ink.

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Convert CMYK color values (0–100% or 0–1) to RGB using standard conversion formula.

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