OKLCH Studio · color reference

CSS color royalblue in OKLCH

Named CSS color royalblue: oklch(0.560 0.188 266.4), HEX #4169E1. Contrast pairs (WCAG + APCA) and Fix links.

CSS “royalblue” is a chromatic named color — great for accents. Run Fix before using it as text or as a text background.

#4169E1 · oklch(0.560 0.188 266.4)

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 white4.85:1 · AA · Lc 73
#4169E1 on #FFFFFF
Open in Contrast →
White on swatch4.85:1 · AA · Lc 79
#FFFFFF on #4169E1
Open in Contrast →
Black on swatch4.33:1 · Fail · Lc 31
#000000 on #4169E1
Open in Contrast →
Suggested text on swatch4.85:1 · AA · Lc 79
#FFFFFF on #4169E1
Open in Contrast →

Against #121212: On #121212, Fix suggests #4C76EF for AA text.

:root {
  --royalblue: oklch(0.560 0.188 266.4);
}

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