Re: [csswg-drafts] [css-color] Add OkHSL (#8659)

> No-one needs a PhD. However, OkHSL and OkHSV also inherits the disadvantages of HSL and HSV - being forced into a regular geometric solid means the color spaces are no longer perceptually uniform. Which is the entire point of Oklab.

That's is the point of OkHSL — it does cut boundaries to be fit in a geometric means, so yes, you loose some peak values but stay perceptually uniform

> Being restricted to sRGB, at the exact time that the Web is strongly moving to display P3, is also a significant limitation.

Yes, that's a big disadvantage and if it's can't be stretched to P3 — this is strong argument against. Curious to hear @bottosson about this.

> Could you explain more about the "exact desired color contrast" part?

It's relatively easy (at least I did this before with HSLuv and WCAG 2 contrast ratio) to calculate an L shift to derive a color with defined contrast ratio. So, for example, if you have a background color and need a color for text with the same H and S with 4.5:1 contrast ratio, you can calculate the L

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Received on Thursday, 30 March 2023 15:23:10 UTC