Canoptek Alloy vs Peridot Alchemy

How close are they?

ΔE 7.6, close: similar, with a visible difference side by side. Peridot Alchemy is a little darker, more saturated, cooler than Canoptek Alloy.

Can I use Peridot Alchemy instead of Canoptek Alloy?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Peridot Alchemy is a little darker, more saturated, cooler than Canoptek Alloy.

Can I use Canoptek Alloy instead of Peridot Alchemy?

The same difference applies the other way round: Canoptek Alloy is a little lighter, more muted, warmer.

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.