Coal Mine
#220033
A magenta that is muted. It is very dark — white text sits on it comfortably, black text does not.
Hex
#220033
RGB
34, 0, 51
OKLCh
19.3% 0.097 311.2°
CIELAB (D50)
5.0, 24.3, -25.1
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 104.7; on black, Lc 0.0. 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 10.3 and 9.5 and 33.1 — no red cone.
Text on this colour
White text
18.82:1 — passes AA
Black text
1.12:1 — fails AA
White text is the better of the two at18.82:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#220033
protanopia
#060633 · ΔE00 10.3
deuteranopia
#0f0f33 · ΔE00 9.5
tritanopia
#161600 · ΔE00 33.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMidnight Purple at ΔE00 1.69: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Midnight PurpleΔE00 1.69 · #280137
- Middle Red PurpleΔE00 2.147 · #210837
- Poisonous PurpleΔE00 2.578 · #2a0134
- PorphyrophobiaΔE00 2.793 · #2a0033
- Dark VioletΔE00 4.458 · #34013f
- Oily PurpleΔE00 4.474 · #2d0f47
- Edge of SpaceΔE00 4.57 · #330044
- Dark PurpleΔE00 4.585 · #35063e
- Purple DoorΔE00 4.657 · #331144
- Your DarknessΔE00 4.666 · #220044
- Deep PurpleΔE00 4.922 · #36013f
- Quiet AbyssΔE00 5.06 · #160435
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.