Honolulu Blue
#007fbf
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#007fbf
RGB
0, 127, 191
OKLCh
57.1% 0.135 241.6°
CIELAB (D50)
49.9, -11.6, -42.4
What is true of this colour, and of no other
- 10 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 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 69.7; on black, Lc -31.9. 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 19.2 and 18.6 and 18.5 — no red cone.
Text on this colour
White text
4.39:1 — large text only
Black text
4.79:1 — passes AA
Black text is the better of the two at4.79:1. That is enough for body text.
As text on white, it needs to change
#007dbc is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.
The same colour, with one cone missing
As you see it
#007fbf
protanopia
#7878bf · ΔE00 19.2
deuteranopia
#6c6cc0 · ΔE00 18.6
tritanopia
#5c5cff · ΔE00 18.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPhuket Palette at ΔE00 0.715: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Phuket PaletteΔE00 0.715 · #0480bd
- Meissen BlueΔE00 1.352 · #007fb9
- Blue BazaarΔE00 1.386 · #017cb8
- Swedish BlueΔE00 1.416 · #007cc0
- Deep CeruleanΔE00 1.503 · #007bbb
- Star Command BlueΔE00 1.61 · #007bb8
- Artesian WaterΔE00 1.721 · #007db6
- Water RacewayΔE00 1.783 · #0083c8
- Tall ShipsΔE00 1.803 · #0e81b9
- Blue AsterΔE00 1.82 · #007ec7
- Star of LifeΔE00 2.02 · #057bc1
- Mediterranean BlueΔE00 2.083 · #1682b9
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.