calculateTonalContrastRatio

Computes the contrast ratio of the tonal values between two colors.

Tonal contrast ratio is based on perceptual luminance values (T in HCT, L* in Lab*). It is more aligned with human perception of lightness compared to the XYZ color space. This allows designers to assess contrast using perceptually accurate color spaces and make adjustments more intuitively, based on linear differences rather than ratios.

Receiver

The first Color to compare.

Return

The tonal contrast ratio between the two colors, using perceptual luminance.

Parameters

other

The second Color to compare.