ΔE 24.1, loose: different enough that you should pick on purpose. Brass is a little lighter, much more muted, warmer than Evil Forest.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Brass is a little lighter, much more muted, warmer than Evil Forest.
The same difference applies the other way round: Evil Forest is a little darker, 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.
See Evil Forest on the colour wheel See Brass on the colour wheel
All matches: Evil Forest equivalents · Brass equivalents