Great Void
#3b5760
A cyan 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
#3b5760
RGB
59, 87, 96
OKLCh
43.8% 0.036 219.9°
CIELAB (D50)
35.0, -8.9, -8.8
What is true of this colour, and of no other
- 5 other named colours sit within ΔE00 2 of it.
- It uses 46% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 86.8; on black, Lc -15.3. 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 12.8 and 13.8 and 16.8 — no red cone.
Text on this colour
White text
7.73:1 — passes AA
Black text
2.72:1 — fails AA
White text is the better of the two at7.73:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#3b5760
protanopia
#545460 · ΔE00 12.8
deuteranopia
#505060 · ΔE00 13.8
tritanopia
#4b4b8e · ΔE00 16.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKingfisher at ΔE00 0.305: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- KingfisherΔE00 0.305 · #3a5760
- Autumn NightΔE00 0.419 · #3b5861
- Cadet SongΔE00 1.106 · #3b5964
- PrussianΔE00 1.189 · #3f585f
- Steiglitz FogΔE00 1.993 · #415862
- Cold Sea CurrentsΔE00 2.017 · #32545e
- Hypothalamus GreyΔE00 2.092 · #415d66
- Green MoonstoneΔE00 2.309 · #33565e
- Opera GlassesΔE00 2.315 · #365360
- CasalΔE00 2.343 · #3f545a
- Mountain MidnightΔE00 2.478 · #385058
- Jimbaran BayΔE00 2.578 · #3d5d64
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.