ΔE 9.0, close: similar, with a visible difference side by side. German Gray is a little lighter, more muted, warmer than Ocean Depths.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). German Gray is a little lighter, more muted, warmer than Ocean Depths.
The same difference applies the other way round: Ocean Depths is a little darker, more saturated, 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 Ocean Depths on the colour wheel See German Gray on the colour wheel
All matches: Ocean Depths equivalents · German Gray equivalents