Black Knight
#010b13
A neutral that has no useful hue — it reads as a grey. It is very dark — white text sits on it comfortably, black text does not.
Hex
#010b13
RGB
1, 11, 19
OKLCh
14.2% 0.027 235.7°
CIELAB (D50)
2.6, -1.6, -4.9
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 88% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 105.8; 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 10.5 — no blue cone.
Text on this colour
White text
19.84:1 — passes AA
Black text
1.06:1 — fails AA
White text is the better of the two at19.84:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#010b13
protanopia
#0a0a13 · ΔE00 4.0
deuteranopia
#080813 · ΔE00 4.3
tritanopia
#060622 · ΔE00 10.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDark Rift at ΔE00 2.087: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- Dark RiftΔE00 2.087 · #060b14
- Black Is BackΔE00 2.494 · #0f1519
- Midnight EditionΔE00 2.744 · #0c121b
- Eight BallΔE00 3.324 · #03050a
- Midnight OilΔE00 3.544 · #0b0c14
- NeverythingΔE00 3.569 · #13181b
- NinjaΔE00 3.736 · #020308
- NyctophobiaΔE00 3.808 · #0b0f1a
- Dark Side of the MoonΔE00 3.87 · #070d0d
- Ruined SmoresΔE00 4.035 · #0f1012
- Narwhal GreyΔE00 4.272 · #080813
- Black HoleΔE00 4.546 · #010203
5 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.