ΔE 19.8, loose: different enough that you should pick on purpose. Magenta is a little darker, much more muted, cooler than Primary Magenta.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Magenta is a little darker, much more muted, cooler than Primary Magenta.
The same difference applies the other way round: Primary 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 Primary Magenta on the colour wheel See Magenta on the colour wheel
All matches: Primary Magenta equivalents · Magenta equivalents