Olympian Blue
#1c4c8c
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#1c4c8c
RGB
28, 76, 140
OKLCh
42.0% 0.118 256.9°
CIELAB (D50)
31.9, 2.6, -41.0
What is true of this colour, and of no other
- 16 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
- It uses 79% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 89.0; on black, Lc -13.3. 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 10.0 and 9.7 and 10.1 — no red cone.
Text on this colour
White text
8.53:1 — passes AA
Black text
2.46:1 — fails AA
White text is the better of the two at8.53:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#1c4c8c
protanopia
#48488c · ΔE00 10.0
deuteranopia
#42428c · ΔE00 9.7
tritanopia
#3a3ab2 · ΔE00 10.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDancing Sea at ΔE00 0.439: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Dancing SeaΔE00 0.439 · #1c4d8f
- Sweat BeeΔE00 0.704 · #1d4e8f
- Iron BlueΔE00 0.856 · #114b91
- Night ModeΔE00 1.026 · #234e86
- Turkish SeaΔE00 1.23 · #194f90
- Yale BlueΔE00 1.24 · #0f4d92
- Clear Night SkyΔE00 1.322 · #214f86
- UnityΔE00 1.372 · #264d8e
- Le Grand BleuΔE00 1.511 · #244e94
- Nautical BlueΔE00 1.527 · #1a5091
- Mondrian BlueΔE00 1.615 · #0f478c
- Lady of the NightΔE00 1.689 · #05498b
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.