Re: [csswg-drafts] [css-ui-4] choosing background colors for accent-color for contrast (#6159)

> I would be interested to know about these magic numbers

What I currently have implemented in chrome is [a check to see if the relative luminance is less than 0.5](https://source.chromium.org/chromium/chromium/src/+/master:ui/native_theme/native_theme_base.cc;l=156-158;drc=8c9f1381dfb11c18406d5bea790ec4e8a59ab2e7), which is sort of a magic number that I imagine will be adjusted unless we decide to do something really different here.
There is some similar [chrome UI code which has a separate magic number](https://source.chromium.org/chromium/chromium/src/+/master:ui/gfx/color_utils.cc;l=33-36;drc=184bf7b03160ebf2217ab4711118d013a750908a), which I could see myself reusing...

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Received on Tuesday, 30 March 2021 23:43:28 UTC