About zinc-50
#FAFAFA is zinc-50, a tailwind v4. This page shows its rgb(250, 250, 250) / hsl(320, 0%, 98.04%) / oklch(0.9851 0 0) values, WCAG contrast against black and white, an OKLCH tint-and-shade ramp, and complementary, analogous, and triadic harmonies — all computed in perceptually-uniform OKLCH.