ΔE 13.2, fair: the same colour family, but not a straight swap. Scarlett Red is a little lighter, much more muted than Archangel Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Scarlett Red is a little lighter, much more muted than Archangel Red.
The same difference applies the other way round: Archangel Red is a little darker, much 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 Archangel Red on the colour wheel See Scarlett Red on the colour wheel
All matches: Archangel Red equivalents · Scarlett Red equivalents