ΔE 18.2, loose: different enough that you should pick on purpose. Scab Red is a little darker, warmer than Blood Thorn.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Scab Red is a little darker, warmer than Blood Thorn.
The same difference applies the other way round: Blood Thorn is a little lighter, 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 Blood Thorn on the colour wheel See Scab Red on the colour wheel
All matches: Blood Thorn equivalents · Scab Red equivalents