oklch-first-color-science-gap-in-frontend-skills

Our frontend skills use hex/hsl color models while modern design standards (as codified in Impeccable) use OKLCH-first (oklch, oklab, lch, lab). OKLCH provides perceptually uniform color interpolation, is now supported in all modern browsers, and is the correct model for contrast validation and gradient construction. This is a capability gap to close in frontend-taste and frontend-data.