OKLCH Studio · color reference

indigo-600 in OKLCH

Tailwind v4 indigo-600: oklch(0.511 0.262 277.0), HEX #4F39F6. WCAG + APCA pairs, Fix deep links, and @theme snippet.

indigo-600 is a saturated mid-dark — good for primary buttons and links on light surfaces; often works as background with light text after Fix.

#4F39F6 · oklch(0.511 0.262 277.0)

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 white6.46:1 · AA · Lc 81
#4F39F6 on #FFFFFF
Open in Contrast →
White on swatch6.46:1 · AA · Lc 86
#FFFFFF on #4F39F6
Open in Contrast →
Black on swatch3.25:1 · Fail · Lc 23
#000000 on #4F39F6
Open in Contrast →
Suggested text on swatch6.46:1 · AA · Lc 86
#FFFFFF on #4F39F6
Open in Contrast →

Against #121212: On near-black (#121212), Fix nudges this stop to #7675FF for AA text.

@theme {
  --color-indigo-600: oklch(0.511 0.262 277.0);
}

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