About taupe-900
#1D1816 is taupe-900, a tailwind v4. This page shows its rgb(29, 24, 22) / hsl(17.14, 13.73%, 10%) / oklch(0.2142 0.0089 43.07) 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.