Mysterious Blue
#3e7a85
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
#3e7a85
RGB
62, 122, 133
OKLCh
54.4% 0.064 210.9°
CIELAB (D50)
47.6, -17.9, -12.4
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- It uses 68% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 73.5; on black, Lc -28.2. 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 20.0 and 21.0 and 23.1 — no red cone.
Text on this colour
White text
4.85:1 — passes AA
Black text
4.33:1 — large text only
White text is the better of the two at4.85:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#3e7a85
protanopia
#757585 · ΔE00 20.0
deuteranopia
#6d6d86 · ΔE00 21.0
tritanopia
#6262d6 · ΔE00 23.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSea Quest at ΔE00 0.378: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Sea QuestΔE00 0.378 · #3e7984
- PanoramaΔE00 1.639 · #327a88
- For the Love of HueΔE00 1.818 · #457e87
- Wish Upon a StarΔE00 1.983 · #447f8a
- Shady BlueΔE00 2.3 · #42808a
- Sky SpaceΔE00 2.531 · #4b7b87
- Brittany BlueΔE00 2.613 · #4c7e86
- FlipΔE00 2.804 · #45747e
- Enamel Antique GreenΔE00 2.819 · #427f85
- Ocean SlumberΔE00 2.826 · #41767b
- Diver’s EdenΔE00 2.833 · #3a797e
- SubmergedΔE00 2.908 · #4a7d82
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.