About teal-900
#0B4F4A is teal-900, a tailwind v4. This page shows its rgb(11, 79, 74) / hsl(175.59, 75.56%, 17.65%) / oklch(0.3871 0.0634 187.21) 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.