Vibrant Vine

#4b373a

A neutral that has no useful hue — it reads as a grey. It is dark — it carries white text and needs care with black.

Hex

#4b373a

RGB

75, 55, 58

OKLCh

36.0% 0.029 8.6°

CIELAB (D50)

25.4, 9.6, 1.8

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses only 20% 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 95.5; 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 10.9 and 12.5 and 27.0 — no red cone.

Text on this colour

White text

11.01:1 — passes AA

Black text

1.91:1 — fails AA

White text is the better of the two at11.01:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#4b373a

protanopia

#3a3a3a · ΔE00 10.9

deuteranopia

#3e3e39 · ΔE00 12.5

tritanopia

#424200 · ΔE00 27.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isJube at ΔE00 1.024: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • JubeΔE00 1.024 · #4b373c
  • Dark PuceΔE00 1.235 · #4f3a3c
  • Burnt BambooΔE00 1.777 · #4d3b3c
  • Judah SilkΔE00 1.902 · #473739
  • Spell CasterΔE00 2.113 · #4a373e
  • Blackberry BurgundyΔE00 2.222 · #4c3938
  • Warm Operator’s OverallsΔE00 2.415 · #483838
  • RaptΔE00 2.475 · #45363a
  • Noblesse ObligeΔE00 2.495 · #463636
  • Magenta InkΔE00 2.825 · #513d3c
  • Chocolate PlumΔE00 3.401 · #3f2f31
  • Venous Blood RedΔE00 3.446 · #3f3033

12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.