Silent Twilight
#0f084b
A blue that is muted. It is dark — it carries white text and needs care with black.
Hex
#0f084b
RGB
15, 8, 75
OKLCh
21.1% 0.114 275.1°
CIELAB (D50)
6.4, 22.8, -40.2
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses 86% 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 104.2; 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.
- 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
18.16:1 — passes AA
Black text
1.16:1 — fails AA
White text is the better of the two at18.16:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#0f084b
protanopia
#09094b · ΔE00 1.1
deuteranopia
#0a0a4b · ΔE00 1.1
tritanopia
#0c0c47 · ΔE00 1.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isUltramarine Shadow at ΔE00 1.549: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Ultramarine ShadowΔE00 1.549 · #090045
- Night BlueΔE00 1.73 · #040348
- Floppy DiskΔE00 1.978 · #110044
- RavenclawΔE00 2.315 · #0a0555
- Magic WhaleΔE00 2.362 · #17034a
- ShadowdancerΔE00 2.623 · #111155
- Endless GalaxyΔE00 2.849 · #000044
- Space ColonisationΔE00 2.915 · #150f5b
- Indigo SlothΔE00 3.032 · #1f0954
- Scoop of Dark MatterΔE00 3.176 · #110055
- Alucard’s NightΔE00 3.287 · #000055
- Deadly DepthsΔE00 3.384 · #111144
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.