Nightmare

#112211

A green that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.

Hex

#112211

RGB

17, 34, 17

OKLCh

23.1% 0.039 144.2°

CIELAB (D50)

11.3, -10.9, 8.9

What is true of this colour, and of no other

  • No other named colour in the set is within ΔE00 2 of it — it stands alone.
  • It uses 53% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 103.5; 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 9.1 and 9.3 and 25.5 — no red cone.

Text on this colour

White text

16.66:1 — passes AA

Black text

1.26:1 — fails AA

White text is the better of the two at16.66:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#112211

protanopia

#212111 · ΔE00 9.1

deuteranopia

#1e1e12 · ΔE00 9.3

tritanopia

#1b1b36 · ΔE00 25.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDeep Slate Olive at ΔE00 2.123: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

  • Deep Slate OliveΔE00 2.123 · #172713
  • Kuro GreenΔE00 2.945 · #1b2b1b
  • Midnight PinesΔE00 3.41 · #17240b
  • Nori GreenΔE00 4.02 · #112a12
  • Oil SlickΔE00 4.146 · #031602
  • Yuzu SoyΔE00 4.414 · #112200
  • Clock Chimes ThirteenΔE00 4.839 · #002211
  • Lindworm GreenΔE00 5.092 · #172808
  • Pinch of PepperΔE00 5.399 · #0f180a
  • Deep Slate GreenΔE00 5.476 · #0f261f
  • BushΔE00 5.5 · #0d2e1c
  • Méi Hēi CoalΔE00 5.862 · #123120

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