OKLCH Studio · color reference
CSS color black in OKLCH
Named CSS color black: oklch(0.000 0.000 0.0), HEX #000000. Contrast pairs (WCAG + APCA) and Fix links.
CSS “black” is dark — typically fine for text on light surfaces; check large UI chrome contrast.
#000000 · oklch(0.000 0.000 0.0)
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 white21.00:1 · AAA · Lc 106
#000000 on #FFFFFF
Open in Contrast → - White on swatch21.00:1 · AAA · Lc 108
#FFFFFF on #000000
Open in Contrast → - Black on swatch1.00:1 · Fail · Lc 0
#000000 on #000000
Open in Contrast → - Suggested text on swatch21.00:1 · AAA · Lc 108
#FFFFFF on #000000
Open in Contrast →
Dark surface pairing
Against #121212: On #121212, Fix suggests #808080 for AA text.
Copy code
:root {
--black: oklch(0.000 0.000 0.0);
}Related
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