Oklab color space support

[helloatilla]

I recently discovered this article from Björn Ottosson regarding a better color space for perceptionally uniform colors.
https://bottosson.github.io/posts/oklab/

Here is an interactive review of Oklab: https://raphlinus.github.io/color/2021/01/18/oklab-critique.html#update-2021-01-29

Is it possible to include Oklab color space for leonardo? I'm currently in the creation of an accessible and perceptionally uniform coor system and Oklab would help a lot in this regard.

Thanks for the efforts and helping us all with better color tools.

[quantizor]

Came across this too, I'll take a stab at it this weekend if I have time.

[NateBaldwinDesign]

That would be great @probablyup 😎

[aaronadamsCA]

Any chance you'll add Oklab (probably specifically Okhsl) anytime soon?

CIECAM isn't bad, but Okhsl still looks like it would do a better job.

[quantizor]

Will try to make time this week

[quantizor]

Thanks Nate! Sorry I couldn't get to it

[NateBaldwinDesign]

@probablyup no worries!