ΔE 24.7, loose: different enough that you should pick on purpose. Red Iron Oxide is a little darker, much more saturated, cooler than Agrellan Badland.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Red Iron Oxide is a little darker, much more saturated, cooler than Agrellan Badland.
The same difference applies the other way round: Agrellan Badland is a little lighter, much 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 Agrellan Badland on the colour wheel See Red Iron Oxide on the colour wheel
All matches: Agrellan Badland equivalents · Red Iron Oxide equivalents