ΔE 9.2, close: similar, with a visible difference side by side. Ink Violet is a little lighter, more saturated than Broodmother Purple. They are different kinds of paint: Army Painter Broodmother Purple is an opaque base/layer paint and Vallejo Ink Violet is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Ink Violet is a little lighter, more saturated than Broodmother Purple. They are different kinds of paint.
The same difference applies the other way round: Broodmother Purple is a little darker, more muted.
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 Broodmother Purple on the colour wheel See Ink Violet on the colour wheel
All matches: Broodmother Purple equivalents · Ink Violet equivalents