ΔE 14.0, fair: the same colour family, but not a straight swap. Magenta Blood is more muted, cooler than The Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Magenta Blood is more muted, cooler than The Red.
The same difference applies the other way round: The Red is 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 The Red on the colour wheel See Magenta Blood on the colour wheel
All matches: The Red equivalents · Magenta Blood equivalents