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Function contrast_ratio

Source 
pub fn contrast_ratio<T>(luma1: T, luma2: T) -> T
where
    T: Real + Arithmetics + PartialCmp,
    T::Mask: LazySelect<T>,
👎Deprecated since 0.7.2: replaced by LinLuma::relative_contrast, via Wcag21RelativeContrast
Expand description

Calculate the ratio between two luma values.