ΔE 11.2, fair: the same colour family, but not a straight swap. Caledor Sky is a little darker, more saturated, warmer than Uniform Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Caledor Sky is a little darker, more saturated, warmer than Uniform Blue.
The same difference applies the other way round: Uniform Blue is a little lighter, more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Uniform Blue on the colour wheel See Caledor Sky on the colour wheel
All matches: Uniform Blue equivalents · Caledor Sky equivalents