ΔE 14.2, fair: the same colour family, but not a straight swap. Azure is a little darker, more saturated, warmer than Azure Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Azure is a little darker, more saturated, warmer than Azure Blue.
The same difference applies the other way round: Azure 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 Azure Blue on the colour wheel See Azure on the colour wheel
All matches: Azure Blue equivalents · Azure equivalents