gray-900 — Tailwind v4.
WCAG 2.2 AA requires 4.5:1 for normal text and 3:1 for large text. Check any pair →
An 11-stop OKLCH ramp through gray-900 (the same engine as the theme builder). Click any stop to open its page.
Protanopia
Deuteranopia
Tritanopia
Achromatopsia
How gray-900 appears to viewers with each color-vision deficiency. Full simulator →
#101828 is gray-900, a tailwind v4. This page shows its rgb(16, 24, 40) / hsl(220, 42.86%, 10.98%) / oklch(0.2099 0.0341 263.44) 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.