Greenskin Punch vs Wild Green

How close are they?

ΔE 15.4, loose: different enough that you should pick on purpose. Wild Green is much more saturated, warmer than Greenskin Punch.

Can I use Wild Green instead of Greenskin Punch?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Wild Green is much more saturated, warmer than Greenskin Punch.

Can I use Greenskin Punch instead of Wild Green?

The same difference applies the other way round: Greenskin Punch is much more muted, cooler.

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.