Sea Blue vs Dk Mediterr. Blue

How close are they?

ΔE 7.1, close: similar, with a visible difference side by side. Dk Mediterr. Blue is a little darker, more muted than Sea Blue.

Can I use Dk Mediterr. Blue instead of Sea Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Dk Mediterr. Blue is a little darker, more muted than Sea Blue.

Can I use Sea Blue instead of Dk Mediterr. Blue?

The same difference applies the other way round: Sea Blue is a little lighter, more saturated.

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.