OKLCH Studio · color reference
yellow-500 in OKLCH
Tailwind v4 yellow-500: oklch(0.795 0.184 86.0), HEX #F0B100. WCAG + APCA pairs, Fix deep links, and @theme snippet.
yellow-500 is Tailwind’s default brand stop — strong for accents and buttons. Verify text on this swatch with Fix; many 500s fail white-on-color for body text.
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 white1.91:1 · Fail · Lc 36
#F0B100 on #FFFFFF
Open in Contrast → - White on swatchnot a suggestion1.91:1 · Fail · Lc 40
#FFFFFF on #F0B100
Demo of a common fail — not a suggestion.
Open in Contrast → - Black on swatch10.99:1 · AAA · Lc 68
#000000 on #F0B100
Open in Contrast → - Fix → AA on white4.77:1 · AA · Lc 73
#A26500 on #FFFFFF
Open in Contrast → - Suggested text on swatch10.18:1 · AAA · Lc 67
#0D0D0D on #F0B100
Open in Contrast →
Dark surface pairing
Against #121212: This stop already passes AA as text on #121212 (9.81:1).
Copy code
@theme {
--color-yellow-500: oklch(0.795 0.184 86.0);
}Related
Convert #F0B100
Keep exploring
Static reference — the live Fix tool uses the same WCAG math with Undo and share links.
Contrast Fix →OKLCH Studio homeTailwind indexCSS names index