Russian Green 4BO vs Army Green

How close are they?

ΔE 8.3, close: similar, with a visible difference side by side. Army Green is a little lighter, cooler than Russian Green 4BO.

Can I use Army Green instead of Russian Green 4BO?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Army Green is a little lighter, cooler than Russian Green 4BO.

Can I use Russian Green 4BO instead of Army Green?

The same difference applies the other way round: Russian Green 4BO 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.