About blue-700
#1447E6 is blue-700, a tailwind v4. This page shows its rgb(20, 71, 230) / hsl(225.43, 84%, 49.02%) / oklch(0.4878 0.2432 264.4) 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.