Psychedelic Purple vs Corrosion

How close are they?

ΔE 56.0, loose: different enough that you should pick on purpose. Corrosion is a little darker, much more muted, warmer than Psychedelic Purple.

Can I use Corrosion instead of Psychedelic Purple?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 56). Corrosion is a little darker, much more muted, warmer than Psychedelic Purple.

Can I use Psychedelic Purple instead of Corrosion?

The same difference applies the other way round: Psychedelic Purple is a little lighter, much more saturated, 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.