ΔE 12.4, fair: the same colour family, but not a straight swap. Beaten Purple is a little darker, more muted than Magecast Magenta.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Beaten Purple is a little darker, more muted than Magecast Magenta.
The same difference applies the other way round: Magecast Magenta is a little lighter, 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 Magecast Magenta on the colour wheel See Beaten Purple on the colour wheel
All matches: Magecast Magenta equivalents · Beaten Purple equivalents