ΔE 12.6, fair: the same colour family, but not a straight swap. Riff Green is a little darker, more muted, cooler than Woodland Camo.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Riff Green is a little darker, more muted, cooler than Woodland Camo.
The same difference applies the other way round: Woodland Camo is a little lighter, more saturated, 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 Woodland Camo on the colour wheel See Riff Green on the colour wheel
All matches: Woodland Camo equivalents · Riff Green equivalents