The Vast of Night
#110066
A blue that is saturated. It is dark — it carries white text and needs care with black.
Hex
#110066
RGB
17, 0, 102
OKLCh
24.0% 0.154 272.3°
CIELAB (D50)
8.4, 35.5, -55.2
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 102.7; 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.
- 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
17.27:1 — passes AA
Black text
1.22:1 — fails AA
White text is the better of the two at17.27:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#110066
protanopia
#020266 · ΔE00 1.4
deuteranopia
#050566 · ΔE00 1.8
tritanopia
#090960 · ΔE00 2.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isAlone in the Dark at ΔE00 1.407: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Alone in the DarkΔE00 1.407 · #000066
- Bavarian GentianΔE00 1.981 · #20006d
- Quantum of LightΔE00 1.996 · #130173
- Underground StreamΔE00 2.236 · #120a65
- D. Darx BlueΔE00 2.316 · #030764
- BlackmailΔE00 2.333 · #220066
- Prussian NightsΔE00 2.395 · #0b085f
- Deep BlueΔE00 2.395 · #040273
- Dark RoyaltyΔE00 2.529 · #02066f
- Darth TorusΔE00 2.54 · #1d045d
- Insomniac BlueΔE00 2.56 · #110077
- Abyssal BlueΔE00 2.569 · #00035b
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.