OKLCH Studio · color reference

orange-700 in OKLCH

Tailwind v4 orange-700: oklch(0.553 0.195 38.4), HEX #CA3500. WCAG + APCA pairs, Fix deep links, and @theme snippet.

orange-700 is a saturated mid-dark — good for primary buttons and links on light surfaces; often works as background with light text after Fix.

#CA3500 · oklch(0.553 0.195 38.4)

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 white5.22:1 · AA · Lc 74
#CA3500 on #FFFFFF
Open in Contrast →
White on swatch5.22:1 · AA · Lc 80
#FFFFFF on #CA3500
Open in Contrast →
Black on swatch4.02:1 · Fail · Lc 30
#000000 on #CA3500
Open in Contrast →
Suggested text on swatch5.22:1 · AA · Lc 80
#FFFFFF on #CA3500
Open in Contrast →

Against #121212: On near-black (#121212), Fix nudges this stop to #E65117 for AA text.

@theme {
  --color-orange-700: oklch(0.553 0.195 38.4);
}

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