Aqua Obscura
#05696b
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
#05696b
RGB
5, 105, 107
OKLCh
47.3% 0.079 197.1°
CIELAB (D50)
39.7, -25.5, -8.8
What is true of this colour, and of no other
- 12 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
- It uses 98% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 81.7; on black, Lc -20.2. 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 22.4 and 24.0 and 30.5 — no red cone.
Text on this colour
White text
6.48:1 — passes AA
Black text
3.24:1 — large text only
White text is the better of the two at6.48:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#05696b
protanopia
#63636b · ΔE00 22.4
deuteranopia
#59596c · ΔE00 24.0
tritanopia
#4c4cc6 · ΔE00 30.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBath Green at ΔE00 0.432: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Bath GreenΔE00 0.432 · #0a696a
- Mayan BlueΔE00 0.845 · #006b6c
- Quetzal GreenΔE00 1 · #006868
- Byzantine BlueΔE00 1.034 · #006c6e
- Joyful TearsΔE00 1.095 · #006669
- Teal BeakΔE00 1.162 · #006767
- Tahitian TreatΔE00 1.31 · #00686d
- Deep LakeΔE00 1.318 · #006c70
- Sci-fi PetrolΔE00 1.388 · #006666
- Barbados BayΔE00 1.715 · #006665
- Chinese GardenΔE00 1.791 · #006967
- Caribbean CurrentΔE00 1.92 · #006e6e
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.