Insomniac Blue
#110077
A blue that is saturated. It is dark — it carries white text and needs care with black.
Hex
#110077
RGB
17, 0, 119
OKLCh
26.5% 0.173 270.2°
CIELAB (D50)
10.9, 39.4, -62.2
What is true of this colour, and of no other
- 5 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 101.5; 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
16.28:1 — passes AA
Black text
1.29:1 — fails AA
White text is the better of the two at16.28:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#110077
protanopia
#020277 · ΔE00 1.1
deuteranopia
#050577 · ΔE00 1.4
tritanopia
#090972 · ΔE00 2.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isQuantum of Light at ΔE00 0.622: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Quantum of LightΔE00 0.622 · #130173
- Scotch BlueΔE00 1.099 · #000077
- Deep BlueΔE00 1.139 · #040273
- Navy BlueΔE00 1.651 · #000080
- Child of the NightΔE00 1.895 · #220077
- Dark RoyaltyΔE00 2.032 · #02066f
- PrunelleΔE00 2.143 · #220878
- Bavarian GentianΔE00 2.492 · #20006d
- The Vast of NightΔE00 2.56 · #110066
- Midnight in TokyoΔE00 2.565 · #000088
- Alone in the DarkΔE00 2.726 · #000066
- Orbital KingdomΔE00 2.833 · #220088
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.