ΔE 13.5, fair: the same colour family, but not a straight swap. Ogryn Camo is a little lighter, more saturated, cooler than Ochre Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Ogryn Camo is a little lighter, more saturated, cooler than Ochre Brown.
The same difference applies the other way round: Ochre Brown is a little darker, 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.
See Ochre Brown on the colour wheel See Ogryn Camo on the colour wheel
All matches: Ochre Brown equivalents · Ogryn Camo equivalents