Nº9 Olive Drab (FS33070) vs Dark Soviet Khaki

How close are they?

ΔE 6.3, close: similar, with a visible difference side by side. Dark Soviet Khaki is warmer than Nº9 Olive Drab (FS33070).

Can I use Dark Soviet Khaki instead of Nº9 Olive Drab (FS33070)?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Dark Soviet Khaki is warmer than Nº9 Olive Drab (FS33070).

Can I use Nº9 Olive Drab (FS33070) instead of Dark Soviet Khaki?

The same difference applies the other way round: Nº9 Olive Drab (FS33070) is 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.