Ultramarine Shadow vs Dk Mediterr. Blue

How close are they?

ΔE 8.0, close: similar, with a visible difference side by side. Dk Mediterr. Blue is a little lighter, warmer than Ultramarine Shadow.

Can I use Dk Mediterr. Blue instead of Ultramarine Shadow?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Dk Mediterr. Blue is a little lighter, warmer than Ultramarine Shadow.

Can I use Ultramarine Shadow instead of Dk Mediterr. Blue?

The same difference applies the other way round: Ultramarine Shadow is a little darker, 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.