Maritime Outpost
#1e4581
A blue that is muted. It is dark — it carries white text and needs care with black.
Hex
#1e4581
RGB
30, 69, 129
OKLCh
39.7% 0.111 258.9°
CIELAB (D50)
29.1, 3.6, -38.6
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses 72% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 91.5; on black, Lc -10.9. 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 8.7 and 8.5 and 8.8 — no red cone.
Text on this colour
White text
9.44:1 — passes AA
Black text
2.22:1 — fails AA
White text is the better of the two at9.44:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#1e4581
protanopia
#424281 · ΔE00 8.7
deuteranopia
#3c3c81 · ΔE00 8.5
tritanopia
#3636a2 · ΔE00 8.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isTheatre Blue at ΔE00 0.97: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Theatre BlueΔE00 0.97 · #21467a
- Indigo HamletΔE00 0.975 · #1f4788
- Poster BlueΔE00 1.559 · #134682
- Pacific NavyΔE00 1.584 · #25488a
- AssaultΔE00 1.748 · #1c4374
- Nuit BlancheΔE00 1.766 · #1e488f
- Florida WatersΔE00 1.844 · #2a4983
- Mondrian BlueΔE00 1.957 · #0f478c
- Cold CurrentΔE00 2.198 · #234272
- Monaco BlueΔE00 2.221 · #274376
- Pacific DepthsΔE00 2.248 · #004488
- Bracing BlueΔE00 2.263 · #014182
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.