ΔE 11.0, fair: the same colour family, but not a straight swap. Straken Green is a little lighter, cooler than Russian Uniform Base.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Straken Green is a little lighter, cooler than Russian Uniform Base.
The same difference applies the other way round: Russian Uniform Base 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 Russian Uniform Base on the colour wheel See Straken Green on the colour wheel
All matches: Russian Uniform Base equivalents · Straken Green equivalents