Straken Green vs Russian Green (4BO)

How close are they?

ΔE 7.6, close: similar, with a visible difference side by side. Russian Green (4BO) is a little darker, more muted than Straken Green.

Can I use Russian Green (4BO) instead of Straken Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Russian Green (4BO) is a little darker, more muted than Straken Green.

Can I use Straken Green instead of Russian Green (4BO)?

The same difference applies the other way round: Straken Green is a little lighter, more saturated.

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.