ΔE 13.8, fair: the same colour family, but not a straight swap. Sap Green is a little darker, more muted, warmer than Savage Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Sap Green is a little darker, more muted, warmer than Savage Green.
The same difference applies the other way round: Savage Green is a little lighter, 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 Savage Green on the colour wheel See Sap Green on the colour wheel
All matches: Savage Green equivalents · Sap Green equivalents