Mole

#392d2b

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

#392d2b

RGB

57, 45, 43

OKLCh

31.0% 0.018 29.2°

CIELAB (D50)

19.8, 5.4, 3.5

What is true of this colour, and of no other

  • 7 other named colours sit within ΔE00 2 of it.
  • It uses only 14% 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 99.6; 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 8.0 and 8.7 and 20.2 — no red cone.

Text on this colour

White text

13.26:1 — passes AA

Black text

1.58:1 — fails AA

White text is the better of the two at13.26:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#392d2b

protanopia

#2f2f2b · ΔE00 8.0

deuteranopia

#31312b · ΔE00 8.7

tritanopia

#333300 · ΔE00 20.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSmoked Black Coffee at ΔE00 1.385: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Smoked Black CoffeeΔE00 1.385 · #3b2f2f
  • Black CoffeeΔE00 1.732 · #3e3231
  • Betel Nut DyeΔE00 1.801 · #352925
  • AubergeΔE00 1.877 · #3f3130
  • Deep BrownΔE00 1.884 · #342a2a
  • GanacheΔE00 1.898 · #372b2c
  • Oil GreyΔE00 1.995 · #3b3131
  • Six Feet UnderΔE00 2.058 · #3d322e
  • Blackest BrownΔE00 2.091 · #403330
  • BloodstoneΔE00 2.394 · #413431
  • SkilandisΔE00 2.476 · #41332f
  • RoanokeΔE00 2.537 · #372b25

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