About emerald-400
#00D294 is emerald-400, a tailwind v4. This page shows its rgb(0, 210, 148) / hsl(162.26, 99.68%, 41.24%) / oklch(0.7642 0.1648 163.17) 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.