ΔE 3.9, very close: most people won’t see a difference side by side. Black Violet is a little darker, cooler than Dioxazine Violet.
Yes, for most jobs. Very close match (ΔE 4). Black Violet is a little darker, cooler than Dioxazine Violet.
The same difference applies the other way round: Dioxazine Violet is a little lighter, warmer.
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 Dioxazine Violet on the colour wheel See Black Violet on the colour wheel
All matches: Dioxazine Violet equivalents · Black Violet equivalents