Turquoise Fantasies
#6dafa7
A cyan that is nearly neutral — the hue shows only against a true grey. It is light — black text sits on it comfortably, white text does not.
Hex
#6dafa7
RGB
109, 175, 167
OKLCh
70.8% 0.069 186.0°
CIELAB (D50)
66.9, -23.4, -2.9
What is true of this colour, and of no other
- No other named colour in the set is within ΔE00 2 of it — it stands alone.
- It uses 55% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 49.3; on black, Lc -52.7. 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 19.3 and 21.5 and 30.8 — no red cone.
Text on this colour
White text
2.52:1 — fails AA
Black text
8.34:1 — passes AA
Black text is the better of the two at8.34:1. That is enough for body text.
As text on white, it needs to change
#3f827a is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.
The same colour, with one cone missing
As you see it
#6dafa7
protanopia
#a9a9a7 · ΔE00 19.3
deuteranopia
#9f9fa8 · ΔE00 21.5
tritanopia
#9393ff · ΔE00 30.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isAurora Teal at ΔE00 2.287: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- Aurora TealΔE00 2.287 · #72b2af
- IntracoastalΔE00 2.293 · #77b5aa
- Spring Water TurquoiseΔE00 2.417 · #7ab5ae
- Lenticular OreΔE00 2.444 · #6fb5a8
- Artesian WellΔE00 2.455 · #5eb2aa
- MelodiousΔE00 2.546 · #7bb5ae
- Veranda BlueΔE00 2.631 · #66b6b0
- VerandaΔE00 2.648 · #61a9a5
- Florida TurquoiseΔE00 2.749 · #6bb8b1
- Dragon BayΔE00 2.772 · #5da99f
- Cooled BlueΔE00 2.972 · #75b9ae
- Earth EclipseΔE00 3.219 · #71bab4
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.