Russian Green Uniform vs Deep Green

How close are they?

ΔE 8.2, close: similar, with a visible difference side by side. Deep Green is more saturated, warmer than Russian Green Uniform.

Can I use Deep Green instead of Russian Green Uniform?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Deep Green is more saturated, warmer than Russian Green Uniform.

Can I use Russian Green Uniform instead of Deep Green?

The same difference applies the other way round: Russian Green Uniform is more muted, 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.