ΔE 14.8, fair: the same colour family, but not a straight swap. Imperial Purple is a little darker, much more saturated, cooler than Daemonette Hide.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Imperial Purple is a little darker, much more saturated, cooler than Daemonette Hide.
The same difference applies the other way round: Daemonette Hide is a little lighter, much 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 Daemonette Hide on the colour wheel See Imperial Purple on the colour wheel
All matches: Daemonette Hide equivalents · Imperial Purple equivalents