Space Missions
#324471
A blue that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.
Hex
#324471
RGB
50, 68, 113
OKLCh
39.4% 0.080 266.3°
CIELAB (D50)
29.0, 3.8, -28.7
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses only 30% 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 92.0; on black, Lc -10.4. 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 5.6 and 5.3 and 5.3 — no red cone.
Text on this colour
White text
9.54:1 — passes AA
Black text
2.20:1 — fails AA
White text is the better of the two at9.54:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#324471
protanopia
#424271 · ΔE00 5.6
deuteranopia
#3f3f71 · ΔE00 5.3
tritanopia
#3c3c87 · ΔE00 5.3
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBona Fide at ΔE00 0.561: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Bona FideΔE00 0.561 · #304471
- Napoleonic BlueΔE00 1.34 · #2c4170
- Daring IndigoΔE00 1.375 · #374874
- Blue FunkΔE00 1.389 · #2d4470
- Forlorn CruiseΔE00 1.466 · #34466c
- Deep Ocean FloorΔE00 1.482 · #2c4173
- Hydrogen BlueΔE00 1.701 · #33476d
- MystificationΔE00 1.801 · #2a4071
- British MauveΔE00 2.038 · #35427b
- ExpressionismΔE00 2.094 · #39497b
- Forbidden BlackberryΔE00 2.119 · #323f75
- Sodalite BlueΔE00 2.217 · #2c447b
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.