ΔE 6.4, close: similar, with a visible difference side by side. Dk Mediterr. Blue is more saturated than Blue Black.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Dk Mediterr. Blue is more saturated than Blue Black.
The same difference applies the other way round: Blue Black is 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 Blue Black on the colour wheel See Dk Mediterr. Blue on the colour wheel
All matches: Blue Black equivalents · Dk Mediterr. Blue equivalents