ΔE 13.1, fair: the same colour family, but not a straight swap. Faded Plum is a little lighter, more muted, warmer than Hexed Violet.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Faded Plum is a little lighter, more muted, warmer than Hexed Violet.
The same difference applies the other way round: Hexed Violet is a little darker, more saturated, 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 Hexed Violet on the colour wheel See Faded Plum on the colour wheel
All matches: Hexed Violet equivalents · Faded Plum equivalents