ΔE 32.6, loose: different enough that you should pick on purpose. Magenta is a little lighter, more muted, warmer than Beaten Purple.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 33). Magenta is a little lighter, more muted, warmer than Beaten Purple.
The same difference applies the other way round: Beaten Purple is a little darker, more saturated, 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 Beaten Purple on the colour wheel See Magenta on the colour wheel
All matches: Beaten Purple equivalents · Magenta equivalents