ΔE 16.1, loose: different enough that you should pick on purpose. Magenta is a little darker, much more muted, cooler than Murderous Magenta.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Magenta is a little darker, much more muted, cooler than Murderous Magenta.
The same difference applies the other way round: Murderous Magenta is a little lighter, much more saturated, warmer.
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 Murderous Magenta on the colour wheel See Magenta on the colour wheel
All matches: Murderous Magenta equivalents · Magenta equivalents