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Function: relativeLuminance()

function relativeLuminance(color): number;

Defined in: contrast.ts:151

WCAG 2.x relative luminance of an sRGB colour, 0 (black) to 1 (white). A translucent colour is composited over white first, because that is the only background a standalone colour can be assumed to sit on.

Parameters

ParameterType
colorstring

Returns

number