CMYK to LCH Color Converter
Convert CMYK colour values to LCH instantly. Free, client-side colour conversion - no signup, no upload, supports the colour picker.
How to Use
- Type or paste a CMYK colour into the input.
- The LCH value updates instantly. Copy with the button.
- Click the swatch to open your browser's native colour picker.
- Click any quick-swatch chip to load a real-world starting colour.
CMYK input
LCH output
Try:
About CMYK and LCH
CMYK — Cyan / Magenta / Yellow / Key for printing.
LCH — Polar form of LAB - Lightness / Chroma / Hue.
Frequently Asked Questions
Does my colour value leave my browser?
No. The conversion runs entirely in JavaScript on this page.
Why does my picked colour change slightly?
Some colour spaces (LAB / OKLab / wide-gamut) can express colours that fall outside sRGB. Those values are clamped back into the displayable range.
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