ΔE 14.7, fair: the same colour family, but not a straight swap. Sap Green is noticeably darker, cooler than Loren Forest.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Sap Green is noticeably darker, cooler than Loren Forest.
The same difference applies the other way round: Loren Forest is noticeably lighter, warmer.
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 Loren Forest on the colour wheel See Sap Green on the colour wheel
All matches: Loren Forest equivalents · Sap Green equivalents