Bats Cloak
#1f1518
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
#1f1518
RGB
31, 21, 24
OKLCh
21.0% 0.017 358.9°
CIELAB (D50)
8.1, 5.7, -0.1
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses only 20% 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 104.6; 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 6.9 and 7.4 and 16.8 — no red cone.
Text on this colour
White text
17.82:1 — passes AA
Black text
1.18:1 — fails AA
White text is the better of the two at17.82:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#1f1518
protanopia
#161618 · ΔE00 6.9
deuteranopia
#181818 · ΔE00 7.4
tritanopia
#1a1a00 · ΔE00 16.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKurobeni at ΔE00 1.768: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- KurobeniΔE00 1.768 · #23191e
- Kālā BlackΔE00 1.966 · #201819
- Scandinavian LiquoriceΔE00 2.982 · #1a1110
- Noir FictionΔE00 3.445 · #150811
- Dark OrchestraΔE00 3.71 · #251b19
- Night DemonsΔE00 3.777 · #201b20
- Bighorn SheepΔE00 4.217 · #20120e
- Italian RoastΔE00 4.227 · #221111
- Velvet BlackΔE00 4.496 · #241f20
- Ink BlackΔE00 4.543 · #252024
- Violet VoidΔE00 4.554 · #1a161d
- ShikonΔE00 4.58 · #2b2028
4 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.