Heavy Violet
#4f566c
A blue that is nearly neutral — the hue shows only against a true grey. It is mid — the hardest range to put text on, either colour struggles.
Hex
#4f566c
RGB
79, 86, 108
OKLCh
45.6% 0.037 271.1°
CIELAB (D50)
36.6, 1.3, -13.7
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses only 13% 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 85.3; on black, Lc -16.7. 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 6.5 — no blue cone.
Text on this colour
White text
7.29:1 — passes AA
Black text
2.88:1 — fails AA
White text is the better of the two at7.29:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#4f566c
protanopia
#55556c · ΔE00 3.7
deuteranopia
#54546c · ΔE00 3.8
tritanopia
#53537a · ΔE00 6.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isHormagaunt Purple at ΔE00 1.128: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Hormagaunt PurpleΔE00 1.128 · #51576f
- HarbourmasterΔE00 1.697 · #4e536b
- Vintage VelvetΔE00 2.116 · #485169
- Nightshade PurpleΔE00 2.197 · #535872
- Elegant NavyΔE00 2.227 · #48516a
- Nightshadow BlueΔE00 2.262 · #555971
- SnoopΔE00 2.337 · #49556c
- Mystical ShadeΔE00 2.401 · #4c5364
- Tried & True BlueΔE00 2.673 · #494f62
- Lap of LuxuryΔE00 2.686 · #515366
- East BayΔE00 2.892 · #47526e
- VoyagerΔE00 2.939 · #4d5062
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.