Update Appearance.tsx

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Ryan Alexander 2021-08-19 00:05:23 +10:00 committed by GitHub
parent 98d1f06ce6
commit b60d590385
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@ -453,14 +453,12 @@ export const Appearance = connectState(Component, (state) => {
});
function getContrastingColour(hex: string, fallback: string): string {
try {
hex = hex.replace("#", "");
const r = parseInt(hex.substr(0, 2), 16);
const g = parseInt(hex.substr(2, 2), 16);
const b = parseInt(hex.substr(4, 2), 16);
const cc = (r * 299 + g * 587 + b * 114) / 1000;
return cc >= 175 ? "black" : "white";
} catch (e) {
hex = hex.replace("#", "");
const r = parseInt(hex.substr(0, 2), 16);
const g = parseInt(hex.substr(2, 2), 16);
const b = parseInt(hex.substr(4, 2), 16);
const cc = (r * 299 + g * 587 + b * 114) / 1000;
if (isNaN(r) || isNaN(g) || isNaN(b) || isNaN(cc))
return getContrastingColour(fallback, "#fffff");
}
return cc >= 175 ? "black" : "white";
}