Sea of Stars
#0b334d
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
#0b334d
RGB
11, 51, 77
OKLCh
30.8% 0.064 242.1°
CIELAB (D50)
19.6, -5.9, -20.3
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses 87% 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 99.2; 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 13.4 and 13.3 and 10.5 — no red cone.
Text on this colour
White text
13.17:1 — passes AA
Black text
1.59:1 — fails AA
White text is the better of the two at13.17:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#0b334d
protanopia
#30304d · ΔE00 13.4
deuteranopia
#2b2b4d · ΔE00 13.3
tritanopia
#252571 · ΔE00 10.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isHalite Blue at ΔE00 0.974: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Halite BlueΔE00 0.974 · #09324a
- Dark Denim BlueΔE00 1.088 · #00334f
- Beyond the StarsΔE00 2.089 · #0a3251
- Gibraltar SeaΔE00 2.212 · #133a54
- Cosmos BlueΔE00 2.375 · #003249
- Night DiveΔE00 2.462 · #003355
- NATO BlueΔE00 2.781 · #153043
- Crow Black BlueΔE00 2.831 · #112f4b
- Indigo BlackΔE00 3.532 · #002e51
- DuskwoodΔE00 3.56 · #123d55
- Incremental BlueΔE00 3.577 · #123456
- PoseidonΔE00 3.629 · #143c5d
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.