LAB to LCH Color Converter

Convert LAB colour values to LCH instantly. Free, client-side colour conversion - no signup, no upload, supports the colour picker.

Converter Color Converters Updated Apr 20, 2026
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How to Use
  1. Type or paste a LAB colour into the input.
  2. The LCH value updates instantly. Copy with the button.
  3. Click the swatch to open your browser's native colour picker.
  4. Click any quick-swatch chip to load a real-world starting colour.
LAB input
LCH output
Try:
Reverse: LCH → LAB Other from LAB: HEX RGB HSL HSV CMYK

About LAB and LCH

LAB — CIE LAB perceptual colour space (D65).

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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