Why convert hex to CMYK?

Screens use additive RGB, but printing uses subtractive CMYK ink. Converting gives you the cyan, magenta, yellow and black ink percentages needed for print artwork.

Is the CMYK conversion exact for print?

It uses the standard mathematical RGB-to-CMYK formula, which is a close approximation. True print colour also depends on the printer profile, ink and paper, so use it as a starting point.

Does this upload my colours?

No. The conversion happens entirely in your browser — nothing is uploaded or stored.

Hex to CMYK Converter

Convert a hex colour code into CMYK for print work.

Hex to CMYK converter

Paste a hex colour code and get the matching CMYK ink percentages — cyan, magenta, yellow and key (black) — for print and design work, with a live swatch.

The tool first reads the hex as RGB, then applies the standard RGB-to-CMYK formula. It is a close mathematical approximation; final print colour also depends on your printer profile. Everything runs in your browser — nothing is uploaded.