ΔE 10.0, fair: the same colour family, but not a straight swap. Steel Helmet Green is more muted than USMC Green FS 34095.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Steel Helmet Green is more muted than USMC Green FS 34095.
The same difference applies the other way round: USMC Green FS 34095 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 USMC Green FS 34095 on the colour wheel See Steel Helmet Green on the colour wheel
All matches: USMC Green FS 34095 equivalents · Steel Helmet Green equivalents