Luxion Purple vs Purple Vanity

How close are they?

ΔE 29.1, loose: different enough that you should pick on purpose. Purple Vanity is noticeably darker, much more muted than Luxion Purple.

Can I use Purple Vanity instead of Luxion Purple?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 29). Purple Vanity is noticeably darker, much more muted than Luxion Purple.

Can I use Luxion Purple instead of Purple Vanity?

The same difference applies the other way round: Luxion Purple is noticeably lighter, much more saturated.

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.