ΔE 14.4, fair: the same colour family, but not a straight swap. Magenta is more muted, cooler than Dark Magenta.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Magenta is more muted, cooler than Dark Magenta.
The same difference applies the other way round: Dark Magenta is 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 Dark Magenta on the colour wheel See Magenta on the colour wheel
All matches: Dark Magenta equivalents · Magenta equivalents