ΔE 9.5, close: similar, with a visible difference side by side. Orange Ochre is a little lighter, more saturated than Arabic Shadow.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Orange Ochre is a little lighter, more saturated than Arabic Shadow.
The same difference applies the other way round: Arabic Shadow 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.
See Arabic Shadow on the colour wheel See Orange Ochre on the colour wheel
All matches: Arabic Shadow equivalents · Orange Ochre equivalents