Royal
#0c1793
A blue that is saturated. It is dark — it carries white text and needs care with black.
Hex
#0c1793
RGB
12, 23, 147
OKLCh
32.3% 0.192 266.5°
CIELAB (D50)
17.8, 36.7, -68.4
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- It uses 88% 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 98.5; 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
13.47:1 — passes AA
Black text
1.56:1 — fails AA
White text is the better of the two at13.47:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#0c1793
protanopia
#161693 · ΔE00 0.8
deuteranopia
#141493 · ΔE00 0.9
tritanopia
#121296 · ΔE00 1.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBright Midnight at ΔE00 0.82: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Bright MidnightΔE00 0.82 · #011993
- Cadmium BlueΔE00 1.19 · #0a1195
- Space ExplorationΔE00 1.302 · #001199
- Snowstorm Space ShuttleΔE00 1.995 · #001188
- Celestial IndigoΔE00 2.044 · #091f92
- Galactic CruiseΔE00 2.046 · #111188
- YearningΔE00 2.091 · #061088
- Phthalo BlueΔE00 2.15 · #000f89
- Blue TrustΔE00 2.57 · #120a8f
- ZaffreΔE00 2.598 · #0014a8
- Dark GalaxyΔE00 2.658 · #0018a8
- Extravehicular ActivityΔE00 2.897 · #0011aa
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.