ΔE 12.8, fair: the same colour family, but not a straight swap. Cam. Dark Green is a little darker, more muted, warmer than Serpent Shadow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Cam. Dark Green is a little darker, more muted, warmer than Serpent Shadow.
The same difference applies the other way round: Serpent Shadow 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 Serpent Shadow on the colour wheel See Cam. Dark Green on the colour wheel
All matches: Serpent Shadow equivalents · Cam. Dark Green equivalents