Burgundy vs Deep Purple

How close are they?

ΔE 8.8, close: similar, with a visible difference side by side. Deep Purple is more saturated, cooler than Burgundy.

Can I use Deep Purple instead of Burgundy?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Deep Purple is more saturated, cooler than Burgundy.

Can I use Burgundy instead of Deep Purple?

The same difference applies the other way round: Burgundy is 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.