Campanula
#3473b7
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#3473b7
RGB
52, 115, 183
OKLCh
54.8% 0.125 252.6°
CIELAB (D50)
46.9, -2.9, -42.6
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses 75% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 73.7; on black, Lc -28.0. 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 13.7 and 13.1 and 12.9 — no red cone.
Text on this colour
White text
4.90:1 — passes AA
Black text
4.28:1 — large text only
White text is the better of the two at4.90:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#3473b7
protanopia
#6e6eb7 · ΔE00 13.7
deuteranopia
#6565b8 · ΔE00 13.1
tritanopia
#5b5bf2 · ΔE00 12.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isNorth Atlantic Breeze at ΔE00 1.267: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- North Atlantic BreezeΔE00 1.267 · #3676b5
- AthensΔE00 1.327 · #3f74b1
- Matt BlueΔE00 1.545 · #2c6fbb
- PetrelΔE00 1.615 · #4076b4
- Palace BlueΔE00 1.622 · #3973c0
- Nocturne ShadeΔE00 1.751 · #356fad
- BluishΔE00 1.802 · #2976bb
- Windows BlueΔE00 1.989 · #3778bf
- Flat BlueΔE00 2.004 · #3c73a8
- Sail OnΔE00 2.242 · #4575ad
- Blue TriumphΔE00 2.289 · #4376ab
- Viennese BlueΔE00 2.428 · #4278af
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.