Cape Verde
#01554f
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
#01554f
RGB
1, 85, 79
OKLCh
40.5% 0.070 186.6°
CIELAB (D50)
31.8, -24.3, -3.2
What is true of this colour, and of no other
- 7 other named colours sit within ΔE00 2 of it.
- It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 89.4; on black, Lc -12.9. 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 19.7 and 22.0 and 31.7 — no red cone.
Text on this colour
White text
8.70:1 — passes AA
Black text
2.41:1 — fails AA
White text is the better of the two at8.70:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#01554f
protanopia
#50504f · ΔE00 19.7
deuteranopia
#484850 · ΔE00 22.0
tritanopia
#3d3da0 · ΔE00 31.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCastleton Green at ΔE00 0.546: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Castleton GreenΔE00 0.546 · #00564f
- Plankton GreenΔE00 0.81 · #00534c
- Myrtle Deep GreenΔE00 0.959 · #00524c
- Baltic PrinceΔE00 1.629 · #135952
- Action GreenΔE00 1.636 · #00504b
- Green OblivionΔE00 1.716 · #005249
- Tabriz TealΔE00 1.829 · #005553
- Pacific StormΔE00 2.342 · #035453
- Stockade GreenΔE00 2.356 · #104f4a
- Breathe DeeplyΔE00 2.368 · #015348
- Forest BiomeΔE00 2.371 · #1d5952
- OverboardΔE00 2.76 · #005555
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.