ΔE 10.6, fair: the same colour family, but not a straight swap. Dechala Lilac is a little lighter, warmer than Hexed Violet.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Dechala Lilac is a little lighter, warmer than Hexed Violet.
The same difference applies the other way round: Hexed Violet is a little darker, 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 Dechala Lilac on the colour wheel
All matches: Hexed Violet equivalents · Dechala Lilac equivalents