ΔE 11.3, fair: the same colour family, but not a straight swap. Orange Magma is a little darker, more saturated than Ocher Orange.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Orange Magma is a little darker, more saturated than Ocher Orange.
The same difference applies the other way round: Ocher Orange is a little lighter, 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 Ocher Orange on the colour wheel See Orange Magma on the colour wheel
All matches: Ocher Orange equivalents · Orange Magma equivalents