ΔE 12.1, fair: the same colour family, but not a straight swap. Deep Green is more muted than Field Green-Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Deep Green is more muted than Field Green-Grey.
The same difference applies the other way round: Field Green-Grey 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-Grey on the colour wheel See Deep Green on the colour wheel
All matches: Field Green-Grey equivalents · Deep Green equivalents