Cinder

#242a2e

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

#242a2e

RGB

36, 42, 46

OKLCh

28.1% 0.011 237.0°

CIELAB (D50)

16.6, -1.9, -3.6

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses only 18% 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 101.3; 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.
  • tritanopia shifts it by ΔE00 10.2 — no blue cone.

Text on this colour

White text

14.53:1 — passes AA

Black text

1.45:1 — fails AA

White text is the better of the two at14.53:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#242a2e

protanopia

#29292e · ΔE00 4.0

deuteranopia

#28282e · ΔE00 4.3

tritanopia

#27273b · ΔE00 10.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Charcoal at ΔE00 0.698: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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