color

HEX ↔ CMYK Converter

Convert HEX colors to CMYK (Cyan, Magenta, Yellow, Key/Black) and back. Useful for print design and prepress. Device-independent approximation, instant in your browser.

instantnothing uploadedno signupunder 30 KB

Everything runs in your browser · nothing is uploaded

Examples

#000000cmyk(0%, 0%, 0%, 100%)hex to cmyk
#ffffffcmyk(0%, 0%, 0%, 0%)hex to cmyk
cmyk(0%, 0%, 0%, 100%)#000000cmyk to hex
cmyk(0%, 0%, 0%, 0%)#ffffffcmyk to hex

How it works

Available operations: HEX → CMYK, CMYK → HEX.

Everything runs locally with the same code that passes our automated correctness tests — no server, no upload.