ΔE 10.2, fair: the same colour family, but not a straight swap. Electric Blue is a little lighter, warmer than Shieldwall Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Electric Blue is a little lighter, warmer than Shieldwall Blue.
The same difference applies the other way round: Shieldwall Blue is a little darker, 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 Shieldwall Blue on the colour wheel See Electric Blue on the colour wheel
All matches: Shieldwall Blue equivalents · Electric Blue equivalents