Naval Night
#011c39
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
#011c39
RGB
1, 28, 57
OKLCh
22.5% 0.066 252.2°
CIELAB (D50)
9.7, -0.1, -22.2
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses 97% 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 103.7; 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 8.6 and 8.6 and 8.1 — no red cone.
Text on this colour
White text
17.12:1 — passes AA
Black text
1.23:1 — fails AA
White text is the better of the two at17.12:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#011c39
protanopia
#1a1a39 · ΔE00 8.6
deuteranopia
#171739 · ΔE00 8.6
tritanopia
#12124d · ΔE00 8.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMaastricht Blue at ΔE00 1.24: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Maastricht BlueΔE00 1.24 · #001c3d
- Midnight MirageΔE00 1.272 · #001f3f
- Rhapsody in BlueΔE00 2.344 · #002244
- Oxford BlueΔE00 2.699 · #002147
- Trapped DarknessΔE00 3.22 · #0e1d32
- Dark EclipseΔE00 3.618 · #112244
- Squid’s InkΔE00 4.129 · #041330
- SubnauticalΔE00 4.526 · #012253
- Cool Balaclavas Are ForeverΔE00 4.542 · #18233d
- NavyΔE00 4.626 · #01153e
- ClarinetΔE00 4.747 · #002255
- Oxford by NightΔE00 4.881 · #001b2e
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.