Weird Elixir vs Glistening Gums

How close are they?

ΔE 25.9, loose: different enough that you should pick on purpose. Glistening Gums is noticeably darker, more muted than Weird Elixir.

Can I use Glistening Gums instead of Weird Elixir?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Glistening Gums is noticeably darker, more muted than Weird Elixir.

Can I use Weird Elixir instead of Glistening Gums?

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