About cyan-300
#53EAFD is cyan-300, a tailwind v4. This page shows its rgb(83, 234, 253) / hsl(186.71, 97.7%, 65.88%) / oklch(0.8654 0.1272 207.08) 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.