Sky Dancer
#4499ff
A blue that is saturated. It is light — black text sits on it comfortably, white text does not.
Hex
#4499ff
RGB
68, 153, 255
OKLCh
68.0% 0.172 254.9°
CIELAB (D50)
61.8, -0.0, -59.2
What is true of this colour, and of no other
- 2 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 54.9; on black, Lc -46.9. 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 15.2 and 14.9 and 15.8 — no red cone.
Text on this colour
White text
2.90:1 — fails AA
Black text
7.25:1 — passes AA
Black text is the better of the two at7.25:1. That is enough for body text.
As text on white, it needs to change
#1c76d9 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
#4499ff
protanopia
#9292ff · ΔE00 15.2
deuteranopia
#8787ff · ΔE00 14.9
tritanopia
#7979ff · ΔE00 15.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBrilliant Azure at ΔE00 1.52: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Brilliant AzureΔE00 1.52 · #3399ff
- Polar GlowΔE00 1.637 · #5097fc
- Blue ChaosΔE00 2.038 · #5599ff
- Feather StarΔE00 2.965 · #59a1ef
- Blue NebulaΔE00 3.205 · #1199ff
- Clear ChillΔE00 3.21 · #1e90ff
- Starfleet BlueΔE00 3.297 · #0096ff
- Karimun BlueΔE00 3.537 · #2196f3
- Sky of MagritteΔE00 3.547 · #0099ff
- Olympic BlueΔE00 3.94 · #4f8fe6
- United Nations BlueΔE00 4.038 · #5b92e5
- Oregon BlueΔE00 4.111 · #448ee4
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.