ΔE 15.8, loose: different enough that you should pick on purpose. Orange Magma is a little darker, much more saturated than Golden Flesh.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Orange Magma is a little darker, much more saturated than Golden Flesh.
The same difference applies the other way round: Golden Flesh is a little lighter, much 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 Golden Flesh on the colour wheel See Orange Magma on the colour wheel
All matches: Golden Flesh equivalents · Orange Magma equivalents