LAB to RGB Converter

Active color#000000

lab(0% 0 0)

LAB Input

RGB Output

1Active Line0Valid Items

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Settings are written to the URL as you change them. Nothing differs from the defaults yet.

Convert CIELAB color values into standard RGB channels.

Input formats

Provide colors using lab(L a b) syntax, with lightness as a percentage from 0% to 100% and the a and b axes as plain numbers. Each line is parsed independently in batch mode.

RGB output

The output prints as rgb(r, g, b) with each channel from 0 to 255. lab(61.03% 63.55 55.96) becomes rgb(255, 87, 51).

Out-of-gamut values

CIELAB can describe colors no sRGB screen can reproduce. When a and b push a color outside that range, each RGB channel clamps to 0-255, which can shift the result slightly from the exact LAB value that was entered.

Frequently Asked Questions

What LAB format does it accept?

lab(L a b) with L as a percentage from 0% to 100% and a/b as plain numbers, such as lab(61.03% 63.55 55.96). Paste one color per line for batch conversion.

Can every LAB value be converted to a valid RGB color?

No. CIELAB covers a wider range of colors than sRGB screens can display. Out-of-range results are clamped to the nearest representable value in each RGB channel.

Why would I start in LAB instead of RGB?

Design and print tools that work in LAB, or color-matching data measured with a spectrophotometer, output LAB values directly. Converting to RGB is the step that makes those values usable in a browser or standard image editor.