ΔE 14.2, fair: the same colour family, but not a straight swap. Lustful Purple is a little lighter, warmer than Baron Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Lustful Purple is a little lighter, warmer than Baron Blue.
The same difference applies the other way round: Baron Blue is a little darker, 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 Baron Blue on the colour wheel See Lustful Purple on the colour wheel
All matches: Baron Blue equivalents · Lustful Purple equivalents