Waikiki
#218ba0
A cyan that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#218ba0
RGB
33, 139, 160
OKLCh
58.9% 0.096 214.7°
CIELAB (D50)
52.9, -24.4, -20.0
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 92% 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 66.8; on black, Lc -34.8. 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 23.8 and 23.5 and 25.7 — no red cone.
Text on this colour
White text
3.99:1 — large text only
Black text
5.27:1 — passes AA
Black text is the better of the two at5.27:1. That is enough for body text.
As text on white, it needs to change
#108297 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
#218ba0
protanopia
#8484a0 · ΔE00 23.8
deuteranopia
#7878a1 · ΔE00 23.5
tritanopia
#6868ff · ΔE00 25.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSafe Harbour at ΔE00 1.337: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Safe HarbourΔE00 1.337 · #1e8ea1
- Parrot FlightΔE00 1.437 · #018da1
- Teal BlueΔE00 1.565 · #01889f
- Toy BlueΔE00 1.579 · #00889f
- ScooterΔE00 1.61 · #308ea0
- Eastern BlueΔE00 1.941 · #00879f
- Gogo BlueΔE00 2.231 · #0087a1
- Marker BlueΔE00 2.327 · #00869a
- QuintanaΔE00 2.39 · #008ca9
- Precious StoneΔE00 2.409 · #328696
- Coral CoastΔE00 2.589 · #068e9e
- ZeftronΔE00 2.843 · #0090ad
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.