ΔE 7.8, close: similar, with a visible difference side by side. USA Olive Drab is a little lighter, cooler than Skavenblight Dinge.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). USA Olive Drab is a little lighter, cooler than Skavenblight Dinge.
The same difference applies the other way round: Skavenblight Dinge is a little darker, warmer.
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 Skavenblight Dinge on the colour wheel See USA Olive Drab on the colour wheel
All matches: Skavenblight Dinge equivalents · USA Olive Drab equivalents