Van Dyke Brown

#664228

An orange 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

#664228

RGB

102, 66, 40

OKLCh

41.4% 0.064 55.8°

CIELAB (D50)

31.8, 13.9, 22.4

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses 63% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 90.1; on black, Lc -12.2. 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 17.4 and 17.4 and 20.0 — no red cone.

Text on this colour

White text

8.84:1 — passes AA

Black text

2.37:1 — fails AA

White text is the better of the two at8.84:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#664228

protanopia

#474728 · ΔE00 17.4

deuteranopia

#4f4f26 · ΔE00 17.4

tritanopia

#565600 · ΔE00 20.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isIrish Coffee at ΔE00 1.544: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Irish CoffeeΔE00 1.544 · #62422b
  • Semi Sweet ChocolateΔE00 1.601 · #6b4226
  • PumpernickelΔE00 1.743 · #6c462d
  • Davao DurianΔE00 1.891 · #6c4226
  • TriassicΔE00 2.049 · #67422d
  • Axe HandleΔE00 2.086 · #6b4730
  • AloeswoodΔE00 2.125 · #6a432d
  • FlatteryΔE00 2.16 · #6b4424
  • Cassiterite BrownΔE00 2.167 · #623c1f
  • Satoimo BrownΔE00 2.385 · #644222
  • KobichaΔE00 2.423 · #6b4423
  • Hickory ChipsΔE00 2.639 · #69482a

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