Seafarer
#204d68
A blue that is nearly neutral — the hue shows only against a true grey. It is mid — the hardest range to put text on, either colour struggles.
Hex
#204d68
RGB
32, 77, 104
OKLCh
40.2% 0.067 238.0°
CIELAB (D50)
30.6, -8.7, -20.7
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses 75% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 90.6; on black, Lc -11.7. 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 15.5 and 15.2 and 12.0 — no red cone.
Text on this colour
White text
9.04:1 — passes AA
Black text
2.32:1 — fails AA
White text is the better of the two at9.04:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#204d68
protanopia
#494968 · ΔE00 15.5
deuteranopia
#434368 · ΔE00 15.2
tritanopia
#3c3c99 · ΔE00 12.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKinetic Blue at ΔE00 1.49: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Kinetic BlueΔE00 1.49 · #254d6a
- Victorian PeacockΔE00 1.953 · #104a65
- Indigo ClothΔE00 2.008 · #204c6c
- Swallow BlueΔE00 2.057 · #154962
- Shimmering SeaΔE00 2.101 · #2b526a
- Tanzanite BlueΔE00 2.163 · #114a6b
- Dark Slate BlueΔE00 2.19 · #214761
- Singing the BluesΔE00 2.221 · #2b4d68
- Blue LavaΔE00 2.265 · #2e5169
- Diver LadyΔE00 2.371 · #27546e
- Ocean TrapezeΔE00 2.377 · #2e526a
- AdriaticΔE00 2.508 · #014a69
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.