ΔE 12.0, fair: the same colour family, but not a straight swap. Purple is a little darker, more muted, warmer than Necromancer Purple.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Purple is a little darker, more muted, warmer than Necromancer Purple.
The same difference applies the other way round: Necromancer Purple 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 Necromancer Purple on the colour wheel See Purple on the colour wheel
All matches: Necromancer Purple equivalents · Purple equivalents