Heavy Charcoal

#565350

A neutral that has no useful hue — it reads as a grey. It is mid — the hardest range to put text on, either colour struggles.

Hex

#565350

RGB

86, 83, 80

OKLCh

44.4% 0.006 67.7°

CIELAB (D50)

35.5, 0.8, 2.2

What is true of this colour, and of no other

  • 12 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses only 6% 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 86.6; on black, Lc -15.5. 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 6.6 — no blue cone.

Text on this colour

White text

7.64:1 — passes AA

Black text

2.75:1 — fails AA

White text is the better of the two at7.64:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#565350

protanopia

#535350 · ΔE00 2.0

deuteranopia

#545450 · ΔE00 2.1

tritanopia

#545446 · ΔE00 6.6

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isTundora at ΔE00 1.041: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • TundoraΔE00 1.041 · #585452
  • Pure BlackΔE00 1.184 · #595652
  • German GreyΔE00 1.185 · #53504e
  • Dark CavernΔE00 1.515 · #55504d
  • Catskill BrownΔE00 1.543 · #595452
  • Jet FuelΔE00 1.586 · #575654
  • Dominant GreyΔE00 1.604 · #5a5651
  • Equestrian LeatherΔE00 1.704 · #5b5652
  • Berry BrownΔE00 1.744 · #544f4c
  • BlackjackΔE00 1.747 · #51504d
  • PepperyΔE00 1.86 · #5b5752
  • Urbane BronzeΔE00 1.998 · #54504a

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