ΔE 20.2, loose: different enough that you should pick on purpose. Angel Green is a little darker, much more saturated, warmer than Russian Green 1.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Angel Green is a little darker, much more saturated, warmer than Russian Green 1.
The same difference applies the other way round: Russian Green 1 is a little lighter, much 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.
See Russian Green 1 on the colour wheel See Angel Green on the colour wheel
All matches: Russian Green 1 equivalents · Angel Green equivalents