Twilight Zone

#191916

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

#191916

RGB

25, 25, 22

OKLCh

21.2% 0.006 106.9°

CIELAB (D50)

8.7, -0.6, 2.1

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses only 13% 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 104.4; 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.
  • All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.

Text on this colour

White text

17.62:1 — passes AA

Black text

1.19:1 — fails AA

White text is the better of the two at17.62:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#191916

protanopia

#191916 · ΔE00 0.0

deuteranopia

#191916 · ΔE00 0.0

tritanopia

#191916 · ΔE00 0.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCoco’s Black at ΔE00 1.187: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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