Nightwalker
#161d3b
A blue 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
#161d3b
RGB
22, 29, 59
OKLCh
24.2% 0.058 271.6°
CIELAB (D50)
11.4, 5.1, -20.8
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 only 37% 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 103.4; 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
16.50:1 — passes AA
Black text
1.27:1 — fails AA
White text is the better of the two at16.50:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#161d3b
protanopia
#1c1c3b · ΔE00 2.8
deuteranopia
#1b1b3b · ΔE00 2.8
tritanopia
#1a1a43 · ΔE00 3.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKonkikyō Blue at ΔE00 2.443: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- Konkikyō BlueΔE00 2.443 · #191f45
- Liberty BlueΔE00 2.552 · #0e1531
- Dark KnightΔE00 2.598 · #151931
- Cool Balaclavas Are ForeverΔE00 3.113 · #18233d
- Lost in SadnessΔE00 3.254 · #151632
- Sombre NightΔE00 3.282 · #161e34
- Black MarketΔE00 3.365 · #222244
- Fainting LightΔE00 3.525 · #1f2847
- Dark EclipseΔE00 3.586 · #112244
- Squid’s InkΔE00 4.013 · #041330
- Spanish RoastΔE00 4.442 · #111133
- Infinite NightΔE00 4.475 · #071037
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.