ΔE 7.7, close: similar, with a visible difference side by side. Blue is a little darker, warmer than Marine Blue.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Blue is a little darker, warmer than Marine Blue.
The same difference applies the other way round: Marine Blue is a little lighter, 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 Marine Blue on the colour wheel See Blue on the colour wheel
All matches: Marine Blue equivalents · Blue equivalents