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