Meteor Shower
#5533ff
A blue that is about as vivid as sRGB can show at this lightness. It is mid — the hardest range to put text on, either colour struggles.
Hex
#5533ff
RGB
85, 51, 255
OKLCh
51.7% 0.275 278.3°
CIELAB (D50)
38.6, 58.1, -96.8
What is true of this colour, and of no other
- One other named colour sits 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.
- All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.
Text on this colour
White text
6.36:1 — passes AA
Black text
3.30:1 — large text only
White text is the better of the two at6.36:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#5533ff
protanopia
#3838ff · ΔE00 3.2
deuteranopia
#3f3fff · ΔE00 3.6
tritanopia
#4646ea · ΔE00 4.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isUltra Indigo at ΔE00 1.911: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Ultra IndigoΔE00 1.911 · #4433ff
- Purplish BlueΔE00 2.911 · #6140ef
- Blue MagentaΔE00 2.957 · #5f34e7
- Royal VesselΔE00 2.992 · #4433ee
- System Shock BlueΔE00 2.995 · #3a2efe
- Nimbus BlueΔE00 3.294 · #4422ff
- Akihabara ArcadeΔE00 3.595 · #601ef9
- Yíng Guāng Sè PurpleΔE00 3.601 · #632de9
- Almost RoyalΔE00 3.905 · #6a2ded
- Han PurpleΔE00 4.084 · #5218fa
- Pink OCDΔE00 4.201 · #6844fc
- Pretentious PeacockΔE00 4.241 · #4444ff
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.