ΔE 11.8, fair: the same colour family, but not a straight swap. Quinacridone Magenta is a little lighter, more saturated than Encarmine Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Quinacridone Magenta is a little lighter, more saturated than Encarmine Red.
The same difference applies the other way round: Encarmine Red is a little darker, more muted.
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 Encarmine Red on the colour wheel See Quinacridone Magenta on the colour wheel
All matches: Encarmine Red equivalents · Quinacridone Magenta equivalents