Haddock’s Sweater
#277aba
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#277aba
RGB
39, 122, 186
OKLCh
56.2% 0.126 246.4°
CIELAB (D50)
48.7, -7.7, -41.4
What is true of this colour, and of no other
- 9 other named colours sit within ΔE00 2 of it.
- It uses 87% 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 71.5; on black, Lc -30.2. 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 16.6 and 16.0 and 15.6 — no red cone.
Text on this colour
White text
4.59:1 — passes AA
Black text
4.58:1 — passes AA
White text is the better of the two at4.59:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#277aba
protanopia
#7474ba · ΔE00 16.6
deuteranopia
#6a6abb · ΔE00 16.0
tritanopia
#5d5dff · ΔE00 15.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isAmalfi Coast at ΔE00 0.979: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Amalfi CoastΔE00 0.979 · #297cbf
- SkyllaΔE00 1.134 · #1f7cc2
- Star of LifeΔE00 1.417 · #057bc1
- Diva BlueΔE00 1.461 · #0079c1
- Roller Coaster ChariotΔE00 1.587 · #0078be
- Bumangués BlueΔE00 1.665 · #0777bc
- Ocean Boat BlueΔE00 1.756 · #0077be
- Swedish BlueΔE00 1.756 · #007cc0
- BluishΔE00 1.856 · #2976bb
- Deep CeruleanΔE00 2 · #007bbb
- Blue AsterΔE00 2.171 · #007ec7
- MykonosΔE00 2.341 · #387abe
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.