ΔE 10.6, fair: the same colour family, but not a straight swap. Magenta is a little lighter, more saturated, warmer than Sunset Purple.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Magenta is a little lighter, more saturated, warmer than Sunset Purple.
The same difference applies the other way round: Sunset Purple is a little darker, more muted, 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 Sunset Purple on the colour wheel See Magenta on the colour wheel
All matches: Sunset Purple equivalents · Magenta equivalents