Into the Stratosphere

#425267

A blue that is nearly neutral — the hue shows only against a true grey. It is mid — the hardest range to put text on, either colour struggles.

Hex

#425267

RGB

66, 82, 103

OKLCh

43.4% 0.040 255.4°

CIELAB (D50)

34.2, -2.1, -14.4

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses only 28% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
  • As text on white it measures APCA Lc 87.6; on black, Lc -14.5. 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.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 8.1 and 8.4 and 9.1 — no red cone.

Text on this colour

White text

7.97:1 — passes AA

Black text

2.63:1 — fails AA

White text is the better of the two at7.97:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#425267

protanopia

#505067 · ΔE00 8.1

deuteranopia

#4e4e67 · ΔE00 8.4

tritanopia

#4b4b83 · ΔE00 9.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isNavy Damask at ΔE00 0.504: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Navy DamaskΔE00 0.504 · #425166
  • December EveΔE00 0.775 · #415064
  • InkjetΔE00 1.079 · #44556b
  • AdmiraltyΔE00 1.553 · #404e61
  • Midnight MosaicΔE00 1.908 · #3d5267
  • InkedΔE00 1.951 · #3b5066
  • Calico DressΔE00 2.063 · #3d4e67
  • RainmakerΔE00 2.144 · #485769
  • Deep ReservoirΔE00 2.227 · #424f5f
  • Luna PierΔE00 2.279 · #414d62
  • Breakaway BlueΔE00 2.422 · #424d60
  • Hidden SapphireΔE00 2.426 · #445771

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