ΔE 6.6, close: similar, with a visible difference side by side. Continental Blue is a little lighter, more saturated than Pure Black.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Continental Blue is a little lighter, more saturated than Pure Black.
The same difference applies the other way round: Pure Black 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 Pure Black on the colour wheel See Continental Blue on the colour wheel
All matches: Pure Black equivalents · Continental Blue equivalents