Weird Elixir vs Neo Pink

How close are they?

ΔE 16.1, loose: different enough that you should pick on purpose. Neo Pink is noticeably lighter, more muted than Weird Elixir.

Can I use Neo Pink instead of Weird Elixir?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Neo Pink is noticeably lighter, more muted than Weird Elixir.

Can I use Weird Elixir instead of Neo Pink?

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