About mauve-900
#1D161E is mauve-900, a tailwind v4. This page shows its rgb(29, 22, 30) / hsl(292.5, 15.38%, 10.2%) / oklch(0.2123 0.0188 322.12) 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.