Outer Space
#314e64
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
#314e64
RGB
49, 78, 100
OKLCh
41.1% 0.051 242.2°
CIELAB (D50)
31.6, -6.1, -16.5
What is true of this colour, and of no other
- 9 other named colours sit within ΔE00 2 of it.
- It uses 52% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 89.9; on black, Lc -12.4. 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 12.7 and 13.0 and 10.0 — no red cone.
Text on this colour
White text
8.73:1 — passes AA
Black text
2.40:1 — fails AA
White text is the better of the two at8.73:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#314e64
protanopia
#4b4b64 · ΔE00 12.7
deuteranopia
#474764 · ΔE00 13.0
tritanopia
#42428d · ΔE00 10.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSovereignty at ΔE00 0.631: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- SovereigntyΔE00 0.631 · #304e63
- Blue FedoraΔE00 0.935 · #324c61
- Blue LavaΔE00 1.545 · #2e5169
- BluedgeonsΔE00 1.62 · #324c64
- Velvet RopeΔE00 1.724 · #36526a
- Singing the BluesΔE00 1.815 · #2b4d68
- Blueberry PieΔE00 1.867 · #314d67
- Majolica BlueΔE00 1.869 · #2d4b65
- Ocean TrapezeΔE00 1.889 · #2e526a
- Ingénue BlueΔE00 2.02 · #334c5d
- Deep OceanΔE00 2.026 · #2a4b5f
- Rain BootsΔE00 2.087 · #354d65
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.