ΔE 12.9, fair: the same colour family, but not a straight swap. Lupercal Green is a little darker, cooler than Gunship Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Lupercal Green is a little darker, cooler than Gunship Green.
The same difference applies the other way round: Gunship Green is a little 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 Gunship Green on the colour wheel See Lupercal Green on the colour wheel
All matches: Gunship Green equivalents · Lupercal Green equivalents