ΔE 9.4, close: similar, with a visible difference side by side. Bloodstain Red is a little darker, more muted than Word Bearers Red.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Bloodstain Red is a little darker, more muted than Word Bearers Red.
The same difference applies the other way round: Word Bearers Red is a little lighter, more saturated.
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 Word Bearers Red on the colour wheel See Bloodstain Red on the colour wheel
All matches: Word Bearers Red equivalents · Bloodstain Red equivalents