ΔE 10.4, fair: the same colour family, but not a straight swap. Light Red is a little lighter, warmer than Blood Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Light Red is a little lighter, warmer than Blood Red.
The same difference applies the other way round: Blood Red is a little darker, cooler.
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 Red on the colour wheel See Light Red on the colour wheel
All matches: Blood Red equivalents · Light Red equivalents