A perceptually uniform triad color harmony that passes color-deficiency constraints can be specified in both traditional and perceptual-uniform color spaces.
ChatGPT-5 generated a perceptually uniform triad color harmony that also passes color deficiency checks and works in both traditional and perceptual color spaces.
OKLCH is a perceptually uniform color model based on OKLab that ensures consistent lightness and chroma across hues, simplifying accurate palette creation.