Weird Elixir vs Titan Violet Pale

How close are they?

ΔE 37.5, loose: different enough that you should pick on purpose. Titan Violet Pale is noticeably lighter, much more muted than Weird Elixir.

Can I use Titan Violet Pale instead of Weird Elixir?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 37). Titan Violet Pale is noticeably lighter, much more muted than Weird Elixir.

Can I use Weird Elixir instead of Titan Violet Pale?

The same difference applies the other way round: Weird Elixir is noticeably darker, 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.