Copacabana
#006c8d
A cyan that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#006c8d
RGB
0, 108, 141
OKLCh
49.6% 0.097 227.9°
CIELAB (D50)
41.8, -17.5, -26.0
What is true of this colour, and of no other
- 8 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 79.2; on black, Lc -22.6. 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 21.0 and 20.3 and 19.6 — no red cone.
Text on this colour
White text
5.95:1 — passes AA
Black text
3.53:1 — large text only
White text is the better of the two at5.95:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#006c8d
protanopia
#66668d · ΔE00 21.0
deuteranopia
#5c5c8e · ΔE00 20.3
tritanopia
#4e4edc · ΔE00 19.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isTechno Blue at ΔE00 0.461: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Techno BlueΔE00 0.461 · #006b8b
- Tropic SeaΔE00 1.2 · #016f92
- SeaportΔE00 1.293 · #006e8c
- Pure Light BlueΔE00 1.375 · #036c91
- Saxony BlueΔE00 1.591 · #216b88
- BondiΔE00 1.852 · #16698c
- Sea GoddessΔE00 1.864 · #216987
- Chill of the NightΔE00 1.963 · #256d8d
- AnselΔE00 2.096 · #016884
- CairnsΔE00 2.228 · #0a6b92
- Private EyeΔE00 2.252 · #006e89
- Teal TuneΔE00 2.288 · #02708c
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.