ΔE 12.1, fair: the same colour family, but not a straight swap. Red Ochre is a little lighter, more saturated, warmer than Beret Maroon.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Red Ochre is a little lighter, more saturated, warmer than Beret Maroon.
The same difference applies the other way round: Beret Maroon is a little darker, 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.
See Beret Maroon on the colour wheel See Red Ochre on the colour wheel
All matches: Beret Maroon equivalents · Red Ochre equivalents