ΔE 11.7, fair: the same colour family, but not a straight swap. Malefic Flesh is a little darker, more saturated, warmer than Demon Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Malefic Flesh is a little darker, more saturated, warmer than Demon Red.
The same difference applies the other way round: Demon Red is a little lighter, more muted, cooler.
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 Demon Red on the colour wheel See Malefic Flesh on the colour wheel
All matches: Demon Red equivalents · Malefic Flesh equivalents