About indigo-200
#C7D2FF is indigo-200, a tailwind v4. This page shows its rgb(199, 210, 255) / hsl(228.21, 99.93%, 89.02%) / oklch(0.8702 0.0636 274.25) 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.