N3 Neutral Gray vs Russ. AF Dark Green

How close are they?

ΔE 8.6, close: similar, with a visible difference side by side. Russ. AF Dark Green is a little darker, more saturated than N3 Neutral Gray.

Can I use Russ. AF Dark Green instead of N3 Neutral Gray?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Russ. AF Dark Green is a little darker, more saturated than N3 Neutral Gray.

Can I use N3 Neutral Gray instead of Russ. AF Dark Green?

The same difference applies the other way round: N3 Neutral Gray is a little lighter, 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.