Blurple
#5539cc
A violet that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#5539cc
RGB
85, 57, 204
OKLCh
47.4% 0.213 283.4°
CIELAB (D50)
35.2, 43.1, -73.4
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses 76% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 84.8; on black, Lc -17.2. 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.
- tritanopia shifts it by ΔE00 5.8 — no blue cone.
Text on this colour
White text
7.39:1 — passes AA
Black text
2.84:1 — fails AA
White text is the better of the two at7.39:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#5539cc
protanopia
#3d3dcc · ΔE00 4.1
deuteranopia
#4343cc · ΔE00 4.3
tritanopia
#4848b3 · ΔE00 5.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRoyal Nightcore at ΔE00 1.02: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Royal NightcoreΔE00 1.02 · #533cc6
- Grape HyacinthΔE00 1.357 · #5533cc
- Illustrious IndigoΔE00 2.897 · #5533bb
- Dragonlord PurpleΔE00 2.954 · #6241c7
- Blue PurpleΔE00 3.296 · #5729ce
- Blue MagentaΔE00 3.481 · #5f34e7
- Blue VioletΔE00 4.031 · #4e32b2
- BurpleΔE00 4.085 · #6832e3
- Yíng Guāng Sè PurpleΔE00 4.176 · #632de9
- Royal VesselΔE00 4.364 · #4433ee
- Sagat PurpleΔE00 4.418 · #6a31ca
- Megadrive ScreenΔE00 4.652 · #4a40ad
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.