Colours found by the contrast that they should have, by the method of Adobe's Leonardo: a search for the lightness at which a colour has the contrast asked for with a background, since the same lightness has a different contrast at each hue. https://github.com/adobe/leonardo
Colours found by the contrast that they should have, by the method of Adobe's Leonardo: a search for the lightness at which a colour has the contrast asked for with a background, since the same lightness has a different contrast at each hue. https://github.com/adobe/leonardo
(at-contrast x background r)The colour x at the OKLCH lightness where its contrast ratio with the
background is r, or just over, keeping its hue and as much chroma as
sRGB allows, or nil where no lightness reaches r. Of a darker and a
lighter answer, it's the one whose lightness is nearer to that of x.
The colour `x` at the OKLCH lightness where its contrast ratio with the `background` is `r`, or just over, keeping its hue and as much chroma as sRGB allows, or nil where no lightness reaches `r`. Of a darker and a lighter answer, it's the one whose lightness is nearer to that of `x`.
(scale x background rs)The colour x at each contrast ratio of rs with the background, as
at-contrast finds it, e.g. a ramp of a brand colour from [1.5 3 4.5 7].
The colour `x` at each contrast ratio of `rs` with the `background`, as at-contrast finds it, e.g. a ramp of a brand colour from [1.5 3 4.5 7].
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