Warm Spring
#4286bc
A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#4286bc
RGB
66, 134, 188
OKLCh
60.0% 0.108 245.0°
CIELAB (D50)
53.3, -9.2, -35.3
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 71% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 66.3; on black, Lc -35.3. 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 16.3 and 15.5 and 14.2 — no red cone.
Text on this colour
White text
3.91:1 — large text only
Black text
5.37:1 — passes AA
Black text is the better of the two at5.37:1. That is enough for body text.
As text on white, it needs to change
#377cb1 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.
The same colour, with one cone missing
As you see it
#4286bc
protanopia
#8181bc · ΔE00 16.3
deuteranopia
#7777bd · ΔE00 15.5
tritanopia
#6b6bff · ΔE00 14.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKing Triton at ΔE00 0.727: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- King TritonΔE00 0.727 · #3c85be
- Walker LakeΔE00 1.099 · #3d87bb
- Curious BlueΔE00 1.176 · #3d85b8
- Cool BlueΔE00 1.284 · #4984b8
- Pat-A-PepΔE00 1.357 · #3887bd
- Steel BlueΔE00 1.693 · #4682b4
- Sea Salt RiversΔE00 2.159 · #5087bd
- DazzleΔE00 2.203 · #5287b9
- Klaxosaur BlueΔE00 2.244 · #2987c7
- Casting SeaΔE00 2.273 · #4586c7
- Handsome HueΔE00 2.419 · #5286ba
- HideoutΔE00 2.421 · #5386b7
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.