Dark Sapphire

#082567

A blue that is muted. It is dark — it carries white text and needs care with black.

Hex

#082567

RGB

8, 37, 103

OKLCh

29.3% 0.121 263.1°

CIELAB (D50)

16.5, 12.8, -42.5

What is true of this colour, and of no other

  • 7 other named colours sit within ΔE00 2 of it.
  • It uses 81% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 100.5; on black, Lc 0.0. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • tritanopia shifts it by ΔE00 5.8 — no blue cone.

Text on this colour

White text

14.28:1 — passes AA

Black text

1.47:1 — fails AA

White text is the better of the two at14.28:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#082567

protanopia

#232367 · ΔE00 4.7

deuteranopia

#1f1f67 · ΔE00 4.8

tritanopia

#1a1a77 · ΔE00 5.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDeep Sapphire at ΔE00 0.352: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.