Montreux Blue
#5879a2
A blue 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
#5879a2
RGB
88, 121, 162
OKLCh
56.8% 0.074 254.3°
CIELAB (D50)
49.6, -3.5, -26.1
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 41% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 71.1; on black, Lc -30.5. 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 10.9 and 10.3 and 8.0 — no red cone.
Text on this colour
White text
4.50:1 — large text only
Black text
4.67:1 — passes AA
Black text is the better of the two at4.67:1. That is enough for body text.
As text on white, it needs to change
#5879a2 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
#5879a2
protanopia
#7676a2 · ΔE00 10.9
deuteranopia
#7171a2 · ΔE00 10.3
tritanopia
#6a6ad2 · ΔE00 8.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCocktail Blue at ΔE00 0.505: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Cocktail BlueΔE00 0.505 · #5a7aa2
- VincaΔE00 1.187 · #5778a7
- Blue PlateΔE00 1.686 · #5b7a9c
- Quiet HarbourΔE00 1.689 · #5a789a
- Flax FlowerΔE00 1.823 · #5577aa
- Endless RiverΔE00 1.83 · #567aad
- Blue YonderΔE00 2.026 · #5a77a8
- SecrecyΔE00 2.037 · #50759e
- PacificaΔE00 2.087 · #4e77a3
- Flying FishΔE00 2.199 · #5376ab
- Sage Blossom BlueΔE00 2.214 · #4e78a9
- Deck CrewΔE00 2.306 · #5e7cac
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.