Elemental Bolt vs Mint Twister

How close are they?

ΔE 19.3, loose: different enough that you should pick on purpose. Mint Twister is noticeably lighter, more saturated than Elemental Bolt.

Can I use Mint Twister instead of Elemental Bolt?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Mint Twister is noticeably lighter, more saturated than Elemental Bolt.

Can I use Elemental Bolt instead of Mint Twister?

The same difference applies the other way round: Elemental Bolt is noticeably 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.