RGB to LAB Color Converter

Convert RGB colour values to LAB 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 RGB colour into the input.
  2. The LAB 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.
RGB input
LAB output
Try:
Reverse: LAB → RGB Other from RGB: HEX HSL HSV CMYK LCH

About RGB and LAB

RGB — Red / Green / Blue 0-255.

LAB — CIE LAB perceptual colour space (D65).

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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