ΔE 13.8, fair: the same colour family, but not a straight swap. Blood Angels Red is noticeably darker, more saturated than Poppy Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Blood Angels Red is noticeably darker, more saturated than Poppy Red.
The same difference applies the other way round: Poppy Red is noticeably 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 Poppy Red on the colour wheel See Blood Angels Red on the colour wheel
All matches: Poppy Red equivalents · Blood Angels Red equivalents