Call It a Night
#42364c
A violet that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.
Hex
#42364c
RGB
66, 54, 76
OKLCh
35.5% 0.041 309.2°
CIELAB (D50)
24.6, 9.2, -11.5
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses only 22% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
- As text on white it measures APCA Lc 96.0; 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 6.1 and 6.4 and 26.0 — no red cone.
Text on this colour
White text
11.27:1 — passes AA
Black text
1.86:1 — fails AA
White text is the better of the two at11.27:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#42364c
protanopia
#37374c · ΔE00 6.1
deuteranopia
#3a3a4c · ΔE00 6.4
tritanopia
#3c3c26 · ΔE00 26.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGothic Grape at ΔE00 1.555: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Gothic GrapeΔE00 1.555 · #473951
- Royal DecreeΔE00 1.724 · #403547
- Caddies SilkΔE00 1.788 · #3e354d
- MaharajaΔE00 2.001 · #3f354f
- MysteriosoΔE00 2.081 · #46394b
- WineshadeΔE00 2.14 · #433748
- Purple VerbenaΔE00 2.195 · #46354b
- Devil’s PlumΔE00 2.369 · #423450
- PreserveΔE00 2.474 · #4a3c50
- Plum IslandΔE00 2.566 · #463c4e
- Purple PlumeriaΔE00 2.571 · #473854
- Purple VelvetΔE00 2.573 · #483b56
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.