About olive-600
#5B5B4B is olive-600, a tailwind v4. This page shows its rgb(91, 91, 75) / hsl(60, 9.64%, 32.55%) / oklch(0.4663 0.0249 107.33) 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.