RAL 8013 Rotbraun vs Beret Maroon

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. Beret Maroon is a little lighter, more saturated than RAL 8013 Rotbraun.

Can I use Beret Maroon instead of RAL 8013 Rotbraun?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Beret Maroon is a little lighter, more saturated than RAL 8013 Rotbraun.

Can I use RAL 8013 Rotbraun instead of Beret Maroon?

The same difference applies the other way round: RAL 8013 Rotbraun is a little darker, more muted.

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.