ΔE 16.2, loose: different enough that you should pick on purpose. Blue Horror is a little darker, cooler than Kraken Lavender.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Blue Horror is a little darker, cooler than Kraken Lavender.
The same difference applies the other way round: Kraken Lavender is a little lighter, 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 Kraken Lavender on the colour wheel See Blue Horror on the colour wheel
All matches: Kraken Lavender equivalents · Blue Horror equivalents