OKLCH Studio · color reference

sky-900 in OKLCH

Tailwind v4 sky-900: oklch(0.391 0.090 240.9), HEX #024A70. WCAG + APCA pairs, Fix deep links, and @theme snippet.

sky-900 is a deep shade — strong for text on light surfaces and dark UI chrome. Pair with lighter stops for surfaces.

#024A70 · oklch(0.391 0.090 240.9)

Contrast pairs

WCAG 2.1 normal text + APCA Lc. Open a pair in the live Fix tool — informational only, not a legal audit.

Text on white9.48:1 · AAA · Lc 91
#024A70 on #FFFFFF
Open in Contrast →
White on swatch9.48:1 · AAA · Lc 96
#FFFFFF on #024A70
Open in Contrast →
Black on swatch2.22:1 · Fail · Lc 13
#000000 on #024A70
Open in Contrast →
Suggested text on swatch9.48:1 · AAA · Lc 96
#FFFFFF on #024A70
Open in Contrast →

Against #121212: On near-black (#121212), Fix nudges this stop to #4884AE for AA text.

@theme {
  --color-sky-900: oklch(0.391 0.090 240.9);
}

Static reference — the live Fix tool uses the same WCAG math with Undo and share links.