lab()

The lab() functional notation expresses a given color in the CIE L*a*b* color space. Lab represents the entire range of color that humans can see.

Syntax

lab(29.2345% 39.3825 20.0664);
lab(52.2345% 40.1645 59.9971);
lab(52.2345% 40.1645 59.9971 / .5);

Functional notation: lab(L a b [/ A])

L specifies the CIE Lightness, and is a <percentage> between 0% representing black and 100% representing white.

The second argument a is the distance along the a axis in the Lab colorspace.

The third argument b is the distance along the b axis in the Lab colorspace.

A (alpha) can be a <number> between 0 and 1, or a <percentage>, where the number 1 corresponds to 100% (full opacity).

Specification
CSS Color Module Level 4 (CSS Color 4) # lab-colors

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`lab()`	No	No	No	No	No	15	No	No	No	No	15	No