ΔE 14.6, fair: the same colour family, but not a straight swap. Blue Violet is noticeably darker, more saturated, cooler than Sorcerer's Cloak.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Blue Violet is noticeably darker, more saturated, cooler than Sorcerer's Cloak.
The same difference applies the other way round: Sorcerer's Cloak is noticeably lighter, more muted, 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 Sorcerer's Cloak on the colour wheel See Blue Violet on the colour wheel
All matches: Sorcerer's Cloak equivalents · Blue Violet equivalents