ΔE 10.2, fair: the same colour family, but not a straight swap. Blue Horror is a little lighter, more muted, cooler than Storm Wolf.
✓ Army Painter Fanatic conversion chart lists these two as equivalents.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Blue Horror is a little lighter, more muted, cooler than Storm Wolf.
The same difference applies the other way round: Storm Wolf is a little darker, more saturated, 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 Storm Wolf on the colour wheel See Blue Horror on the colour wheel
All matches: Storm Wolf equivalents · Blue Horror equivalents