OKLCH Studio · color reference

emerald-600 in OKLCH

Tailwind v4 emerald-600: oklch(0.596 0.145 163.2), HEX #009966. WCAG + APCA pairs, Fix deep links, and @theme snippet.

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

#009966 · oklch(0.596 0.145 163.2)

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 white3.65:1 · Fail · Lc 63
#009966 on #FFFFFF
Open in Contrast →
White on swatchnot a suggestion3.65:1 · Fail · Lc 69
#FFFFFF on #009966
Demo of a common fail — not a suggestion.
Open in Contrast →
Black on swatch5.75:1 · AA · Lc 41
#000000 on #009966
Open in Contrast →
Fix → AA on white5.00:1 · AA · Lc 74
#00804F on #FFFFFF
Open in Contrast →
Suggested text on swatch5.32:1 · AA · Lc 40
#0D0D0D on #009966
Open in Contrast →

Against #121212: This stop already passes AA as text on #121212 (5.13:1).

@theme {
  --color-emerald-600: oklch(0.596 0.145 163.2);
}

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