OKLab and OKLCH coming soon to CSS4 near you:
https://www.w3.org/TR/css-color-4/#resolving-oklab-oklch-val...
Note this is a part of what the "Color Spaces and Functions" area of Interop 2022 (https://webkit.org/blog/12288/working-together-on-interop-20...) contains. See https://wpt.fyi/interop-2022?feature=interop-2022-color for the current status.
OKLab and OKLCH coming soon to CSS4 near you:
https://www.w3.org/TR/css-color-4/#resolving-oklab-oklch-val...