CSS Working Group has added the lch() and lab() functions to the CSS Color Module Level 4 specification. These are based on the CIE LAB color space, which is able to represent colors in a way that closely matches human perception. The purpose of this intent is to implement the functions lch() and lab() as described in the CSS spec.


These new functions will enable design tools and design systems to handle colors with higher richness, fidelity, and flexibility, and improve accessibility. Supporting this functionality will also help unblock other color related additions to CSS.



Specification link

Unknown standards status - check spec link for status

Status in Chromium


In development (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Search tags

CSS, color, CIE, lab, lhr,

Last updated on 2022-01-01