ΔE 8.7, close: similar, with a visible difference side by side. Thicket Grove is more muted than Field Green FS 34097.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Thicket Grove is more muted than Field Green FS 34097.
The same difference applies the other way round: Field Green FS 34097 is more saturated.
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 Field Green FS 34097 on the colour wheel See Thicket Grove on the colour wheel
All matches: Field Green FS 34097 equivalents · Thicket Grove equivalents