Underwater Moonlight
#4488aa
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#4488aa
RGB
68, 136, 170
OKLCh
59.7% 0.086 232.5°
CIELAB (D50)
53.4, -14.5, -25.0
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses 70% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 66.5; on black, Lc -35.2. 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 19.1 and 18.3 and 16.5 — no red cone.
Text on this colour
White text
3.93:1 — large text only
Black text
5.35:1 — passes AA
Black text is the better of the two at5.35:1. That is enough for body text.
As text on white, it needs to change
#3a7ea0 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
#4488aa
protanopia
#8282aa · ΔE00 19.1
deuteranopia
#7979ab · ΔE00 18.3
tritanopia
#6d6dfc · ΔE00 16.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isTropic at ΔE00 0.792: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- TropicΔE00 0.792 · #4889ac
- CornwallΔE00 1.856 · #4885aa
- Magic BlueΔE00 1.943 · #3e8baa
- CosmopolitanΔE00 2.044 · #528bab
- Blue ChaiseΔE00 2.083 · #4b8ca9
- Atlantic GullΔE00 2.213 · #4b8eb0
- HemisphereΔE00 2.398 · #5285a4
- Boston BlueΔE00 2.671 · #438eac
- Raging TideΔE00 2.728 · #5187a0
- Kuta SurfΔE00 2.739 · #5789a5
- Safe HavenΔE00 2.75 · #5588aa
- Lake HenryΔE00 2.782 · #4181a6
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.