About zinc-200
#E4E4E7 is zinc-200, a tailwind v4. This page shows its rgb(228, 228, 231) / hsl(240, 5.88%, 90%) / oklch(0.9197 0.004 286.32) 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.