Feral Green vs Russian Green 1

How close are they?

ΔE 11.3, fair: the same colour family, but not a straight swap. Russian Green 1 is more saturated than Feral Green.

Can I use Russian Green 1 instead of Feral Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Russian Green 1 is more saturated than Feral Green.

Can I use Feral Green instead of Russian Green 1?

The same difference applies the other way round: Feral Green is more muted.

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.