ΔE 15.7, loose: different enough that you should pick on purpose. Uniform Green is a little lighter, more muted, warmer than Forest Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Uniform Green is a little lighter, more muted, warmer than Forest Green.
The same difference applies the other way round: Forest Green is a little darker, 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 Forest Green on the colour wheel See Uniform Green on the colour wheel
All matches: Forest Green equivalents · Uniform Green equivalents