ΔE 11.5, fair: the same colour family, but not a straight swap. Purple is a little lighter, cooler than Shadow Violet.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Purple is a little lighter, cooler than Shadow Violet.
The same difference applies the other way round: Shadow Violet is a little darker, 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 Shadow Violet on the colour wheel See Purple on the colour wheel
All matches: Shadow Violet equivalents · Purple equivalents