ΔE 11.2, fair: the same colour family, but not a straight swap. Red Leather is a little darker, more muted, cooler than Bloodreaver Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Red Leather is a little darker, more muted, cooler than Bloodreaver Flesh.
The same difference applies the other way round: Bloodreaver Flesh is a little lighter, 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 Bloodreaver Flesh on the colour wheel See Red Leather on the colour wheel
All matches: Bloodreaver Flesh equivalents · Red Leather equivalents