Sunken Mystery
#23505a
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
#23505a
RGB
35, 80, 90
OKLCh
40.4% 0.052 214.3°
CIELAB (D50)
31.2, -13.6, -10.9
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 73% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 90.2; on black, Lc -12.1. 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 17.0 and 18.3 and 19.5 — no red cone.
Text on this colour
White text
8.87:1 — passes AA
Black text
2.37:1 — fails AA
White text is the better of the two at8.87:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#23505a
protanopia
#4c4c5a · ΔE00 17.0
deuteranopia
#46465b · ΔE00 18.3
tritanopia
#3f3f93 · ΔE00 19.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isAtlantic Deep at ΔE00 1.304: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Atlantic DeepΔE00 1.304 · #294f58
- Genetic CodeΔE00 1.633 · #18515d
- Hurricane Green BlueΔE00 1.655 · #254d54
- StinkhornΔE00 1.66 · #2a545c
- Pāua ShellΔE00 1.917 · #245056
- Sea of AtlantisΔE00 1.973 · #2d535a
- Recollection BlueΔE00 2.027 · #1a525b
- Hidden WatersΔE00 2.311 · #225258
- Berry Blue GreenΔE00 2.398 · #264b56
- Frozen StreamΔE00 2.453 · #30555d
- Encore TealΔE00 2.459 · #30525b
- Nocturnal ExpeditionΔE00 2.487 · #114c5a
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.