Dark Serpent

#113311

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

#113311

RGB

17, 51, 17

OKLCh

28.6% 0.071 143.5°

CIELAB (D50)

18.1, -19.3, 17.4

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 75% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 100.4; 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 12.3 and 12.5 and 35.4 — no red cone.

Text on this colour

White text

13.95:1 — passes AA

Black text

1.51:1 — fails AA

White text is the better of the two at13.95:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#113311

protanopia

#303011 · ΔE00 12.3

deuteranopia

#2c2c12 · ΔE00 12.5

tritanopia

#262654 · ΔE00 35.4

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGameboy Contrast at ΔE00 2.316: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

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