Frosted Blueberries
#0055dd
A blue that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#0055dd
RGB
0, 85, 221
OKLCh
50.1% 0.219 261.2°
CIELAB (D50)
39.4, 23.0, -76.5
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- 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 80.2; on black, Lc -21.6. 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 7.8 and 8.1 and 9.6 — no red cone.
Text on this colour
White text
6.28:1 — passes AA
Black text
3.34:1 — large text only
White text is the better of the two at6.28:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#0055dd
protanopia
#5050dd · ΔE00 7.8
deuteranopia
#4848dd · ΔE00 8.1
tritanopia
#3d3dff · ΔE00 9.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isChun-Li Blue at ΔE00 1.226: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Chun-Li BlueΔE00 1.226 · #1559db
- Bnei Brak BayΔE00 1.857 · #1d5bd6
- Opulent BlueΔE00 1.91 · #0055ee
- Dead Blue EyesΔE00 1.923 · #0055cc
- Pacific BridgeΔE00 2.091 · #0052cc
- Iridescent BlueΔE00 2.39 · #0153c8
- Veteran’s Day BlueΔE00 3.148 · #2e58e8
- Megaman HelmetΔE00 3.164 · #0058f8
- New CarΔE00 3.293 · #214fc6
- AzulΔE00 3.307 · #1d5dec
- Mourning BlueΔE00 3.462 · #1651bd
- Cerulean BlueΔE00 3.489 · #2a52be
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.