OKLCH Studio · color reference

cyan-400 in OKLCH

Tailwind v4 cyan-400: oklch(0.789 0.154 211.5), HEX #00D3F2. WCAG + APCA pairs, Fix deep links, and @theme snippet.

cyan-400 sits in the mid-light range — useful for secondary surfaces and large display type after a contrast check.

#00D3F2 · oklch(0.789 0.154 211.5)

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 white1.81:1 · Fail · Lc 33
#00D3F2 on #FFFFFF
Open in Contrast →
White on swatchnot a suggestion1.81:1 · Fail · Lc 37
#FFFFFF on #00D3F2
Demo of a common fail — not a suggestion.
Open in Contrast →
Black on swatch11.60:1 · AAA · Lc 71
#000000 on #00D3F2
Open in Contrast →
Fix → AA on white4.96:1 · AA · Lc 74
#007A98 on #FFFFFF
Open in Contrast →
Suggested text on swatch10.74:1 · AAA · Lc 71
#0D0D0D on #00D3F2
Open in Contrast →

Against #121212: This stop already passes AA as text on #121212 (10.35:1).

@theme {
  --color-cyan-400: oklch(0.789 0.154 211.5);
}

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