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What are OKLCH colors?

(jakub.kr)
856 points tontonius | 1 comments | 25 Aug 25 06:32 UTC | HN request time: 0s | source
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fidotron ◴[25 Aug 25 10:56 UTC] No.45012490[source]▶
> In the example above, you can see that the OKLCH colors maintain consistent blueness across all of the shades, while in the HSL example, the lighter shades drift to purple and the darker ones muddy out towards grayish.

There is a very clear shift towards green in the OKLCH lightness value change example, enormously more so than any purple vibe in the HSL example.

Clearly being able to select colours of the same perceptual intensity has value, but some of the claims here as to the benefits are exaggerated.

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rafram ◴[25 Aug 25 12:20 UTC] No.45013045[source]▶
There’s no green shift at all in that example on my display. Could your calibration be off?
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1. fidotron ◴[25 Aug 25 12:45 UTC] No.45013247[source]▶
It's practically cyan, which is half way to green, not a lighter version of the blue to the left. This is on a MBP built in display.

This totally has uses but it is not, as claimed, "there is no hue or saturation drift" given the hue has shifted so much.