ΔE 11.9, fair: the same colour family, but not a straight swap. Magic Blue is a little lighter, more saturated than Mediterranean Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Magic Blue is a little lighter, more saturated than Mediterranean Blue.
The same difference applies the other way round: Mediterranean Blue is a little darker, more muted.
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 Mediterranean Blue on the colour wheel See Magic Blue on the colour wheel
All matches: Mediterranean Blue equivalents · Magic Blue equivalents