ΔE 12.1, fair: the same colour family, but not a straight swap. Hexed Lichen is a little darker, warmer than Purple.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Hexed Lichen is a little darker, warmer than Purple.
The same difference applies the other way round: Purple is a little lighter, 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 Purple on the colour wheel See Hexed Lichen on the colour wheel
All matches: Purple equivalents · Hexed Lichen equivalents