LAB to HEX Converter

Active color#000000

lab(0% 0 0)

LAB Input

Hex 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 a hexadecimal color code your browser and CSS already understand.

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.

Hex output

The output is formatted as a 6-digit hex code in uppercase (#RRGGBB). lab(61.03% 63.55 55.96) becomes #FF5733.

Out-of-gamut values

CIELAB can describe colors no consumer screen can reproduce. When a and b push a color outside the sRGB gamut, the conversion clamps each RGB channel to the 0-255 range, which can shift the result slightly from the color a print workflow intended.

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 HEX color?

No. CIELAB covers a wider range of colors than a screen can display. Values with extreme a or b combined with high or low lightness fall outside sRGB and get clamped to the nearest representable RGB channel values.

Why does the hex output look slightly different from the original color?

Rounding L, a, and b to two decimal places, and clamping any out-of-gamut result to the 0-255 RGB range, can shift the reconstructed hex code by a small amount from the exact source color.