HSL to LCH Color Converter

Convert HSL 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 HSL 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.
HSL input
LCH output
Try:
Reverse: LCH → HSL Other from HSL: HEX RGB HSV CMYK LAB

About HSL and LCH

HSL — Hue / Saturation / Lightness.

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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