ΔE 7.8, close: similar, with a visible difference side by side. Mid Soviet Khaki is warmer than Russian Uniform Base.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Mid Soviet Khaki is warmer than Russian Uniform Base.
The same difference applies the other way round: Russian Uniform Base 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.
See Russian Uniform Base on the colour wheel See Mid Soviet Khaki on the colour wheel
All matches: Russian Uniform Base equivalents · Mid Soviet Khaki equivalents