ΔE 13.7, fair: the same colour family, but not a straight swap. Black Red is a little darker, more saturated than Cuirass Leather.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Black Red is a little darker, more saturated than Cuirass Leather.
The same difference applies the other way round: Cuirass Leather is a little lighter, 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 Cuirass Leather on the colour wheel See Black Red on the colour wheel
All matches: Cuirass Leather equivalents · Black Red equivalents