ΔE 9.9, close: similar, with a visible difference side by side. Dechala Lilac is more saturated, warmer than Violet Coven.
✓ Army Painter Fanatic conversion chart lists these two as equivalents.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Dechala Lilac is more saturated, warmer than Violet Coven.
The same difference applies the other way round: Violet Coven is 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 Violet Coven on the colour wheel See Dechala Lilac on the colour wheel
All matches: Violet Coven equivalents · Dechala Lilac equivalents