Poison Green vs Scorpy Green

How close are they?

ΔE 16.3, loose: different enough that you should pick on purpose. Scorpy Green is noticeably darker, more saturated than Poison Green.

Can I use Scorpy Green instead of Poison Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Scorpy Green is noticeably darker, more saturated than Poison Green.

Can I use Poison Green instead of Scorpy Green?

The same difference applies the other way round: Poison Green is noticeably lighter, 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.