Fisher King
#5182b9
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#5182b9
RGB
81, 130, 185
OKLCh
59.6% 0.100 252.4°
CIELAB (D50)
52.7, -4.5, -34.5
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 uses 56% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 67.2; on black, Lc -34.5. 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 12.9 and 12.2 and 10.8 — no red cone.
Text on this colour
White text
4.00:1 — large text only
Black text
5.24:1 — passes AA
Black text is the better of the two at5.24:1. That is enough for body text.
As text on white, it needs to change
#4979b0 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
#5182b9
protanopia
#7e7eb9 · ΔE00 12.9
deuteranopia
#7676ba · ΔE00 12.2
tritanopia
#6d6df5 · ΔE00 10.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRegatta at ΔE00 0.603: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- RegattaΔE00 0.603 · #5382bb
- Blue VaultΔE00 0.748 · #4e83bd
- Cyan AzureΔE00 1.283 · #4e82b4
- Astro NauticoΔE00 1.523 · #5383c3
- Handsome HueΔE00 1.589 · #5286ba
- Sea NoteΔE00 1.614 · #5482c2
- Azul Pavo RealΔE00 1.667 · #537faf
- Havelock BlueΔE00 1.752 · #5784c1
- HideoutΔE00 1.807 · #5386b7
- Sea Salt RiversΔE00 1.999 · #5087bd
- Deepest PeriwinkleΔE00 2.02 · #5c84b4
- Splash PalaceΔE00 2.025 · #5984b0
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.