ΔE 17.4, loose: different enough that you should pick on purpose. The Red Baron is a little lighter, much more saturated than Blood Chalice.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). The Red Baron is a little lighter, much more saturated than Blood Chalice.
The same difference applies the other way round: Blood Chalice is a little darker, much more muted.
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 Chalice on the colour wheel See The Red Baron on the colour wheel
All matches: Blood Chalice equivalents · The Red Baron equivalents