OKLCH Studio · color reference

neutral-900 in OKLCH

Tailwind v4 neutral-900: oklch(0.205 0.000 0.0), HEX #171717. WCAG + APCA pairs, Fix deep links, and @theme snippet.

neutral-900 is a deep shade — strong for text on light surfaces and dark UI chrome. Pair with lighter stops for surfaces.

#171717 · oklch(0.205 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 white17.93:1 · AAA · Lc 105
#171717 on #FFFFFF
Open in Contrast →
White on swatch17.93:1 · AAA · Lc 107
#FFFFFF on #171717
Open in Contrast →
Black on swatch1.17:1 · Fail · Lc 0
#000000 on #171717
Open in Contrast →
Suggested text on swatch17.93:1 · AAA · Lc 107
#FFFFFF on #171717
Open in Contrast →

Against #121212: On near-black (#121212), Fix nudges this stop to #828282 for AA text.

@theme {
  --color-neutral-900: oklch(0.205 0.000 0.0);
}

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