Diver’s Eden
#3a797e
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
#3a797e
RGB
58, 121, 126
OKLCh
53.7% 0.065 202.3°
CIELAB (D50)
46.9, -20.0, -9.3
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- It uses 71% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 74.3; on black, Lc -27.4. 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 20.2 and 21.7 and 26.5 — no red cone.
Text on this colour
White text
4.98:1 — passes AA
Black text
4.22:1 — large text only
White text is the better of the two at4.98:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#3a797e
protanopia
#74747e · ΔE00 20.2
deuteranopia
#6b6b7f · ΔE00 21.7
tritanopia
#6060d4 · ΔE00 26.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGrand Canal at ΔE00 0.455: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Grand CanalΔE00 0.455 · #3c797d
- Blue VenusΔE00 1.253 · #397c80
- Sea UrchinΔE00 1.63 · #367d83
- Ocean SlumberΔE00 1.761 · #41767b
- MingΔE00 2.143 · #407577
- Enamel Antique GreenΔE00 2.489 · #427f85
- Sea SwimmerΔE00 2.491 · #337f86
- Lucky ShamrockΔE00 2.573 · #487a7b
- Tropical RainΔE00 2.61 · #447777
- Pacific Sea TealΔE00 2.736 · #3e8083
- Mysterious BlueΔE00 2.833 · #3e7a85
- AtollΔE00 2.833 · #2b797a
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.