Feral Green vs Traitor Green

How close are they?

ΔE 16.9, loose: different enough that you should pick on purpose. Traitor Green is much more muted, warmer than Feral Green.

Can I use Traitor Green instead of Feral Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Traitor Green is much more muted, warmer than Feral Green.

Can I use Feral Green instead of Traitor Green?

The same difference applies the other way round: Feral Green is much more saturated, 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.