ΔE 11.5, fair: the same colour family, but not a straight swap. Marine Mist is a little lighter, cooler than Phantom Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Marine Mist is a little lighter, cooler than Phantom Blue.
The same difference applies the other way round: Phantom Blue is a little darker, warmer.
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 Phantom Blue on the colour wheel See Marine Mist on the colour wheel
All matches: Phantom Blue equivalents · Marine Mist equivalents