About teal-50
#F0FDFA is teal-50, a tailwind v4. This page shows its rgb(240, 253, 250) / hsl(166.15, 76.47%, 96.67%) / oklch(0.9836 0.0142 180.72) 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.