Tools / Color Converter / CMYK → HEX
CMYK to HEX Converter.
CMYK to HEX takes a print ink spec and produces the closest six-digit web color, via CMYK → RGB → HEX. It's the bridge from a brand's print guideline to a usable website value.
Not a recognizable CMYK color.
HEX
All formats
The CMYK → HEX formula
R,G,B = 255·(1−CMY)·(1−K), then hex-encode each channel as two base-16 digits.
Worked example
Convert cmyk(0%, 73%, 73%, 40%):
- 1−K = 0.60
- R = 255·1·0.60 = 153, G = 255·0.27·0.60 ≈ 41, B ≈ 41
- Hex-encode → ≈ #99292 9 → #992929
JavaScript
// cmykToRgb then rgbToHex (see colorConvert.ts)
const rgb = cmykToRgb({c:0,m:73,y:73,k:40});
const hex = rgbToHex(rgb); // ~ "#99292 9"FAQ
Why might the hex differ from my brand's stated web color?
Brand guidelines usually define hex and CMYK independently from a master color, so the converted value can land a few digits off the official hex. When both are given, use the official hex for web.