ΔE 21.5, loose: different enough that you should pick on purpose. Sunburned Skin is a little lighter, much more muted than Orange Magma.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Sunburned Skin is a little lighter, much more muted than Orange Magma.
The same difference applies the other way round: Orange Magma is a little darker, much more saturated.
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 Orange Magma on the colour wheel See Sunburned Skin on the colour wheel
All matches: Orange Magma equivalents · Sunburned Skin equivalents