Forbidden Fruit vs Perisher Pink

How close are they?

ΔE 21.6, loose: different enough that you should pick on purpose. Perisher Pink is noticeably darker, more saturated, warmer than Forbidden Fruit.

Can I use Perisher Pink instead of Forbidden Fruit?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Perisher Pink is noticeably darker, more saturated, warmer than Forbidden Fruit.

Can I use Forbidden Fruit instead of Perisher Pink?

The same difference applies the other way round: Forbidden Fruit is noticeably lighter, 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.