ΔE 8.2, close: similar, with a visible difference side by side. Orange Magma is more saturated than Pastel Peach.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Orange Magma is more saturated than Pastel Peach.
The same difference applies the other way round: Pastel Peach is 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 Pastel Peach on the colour wheel See Orange Magma on the colour wheel
All matches: Pastel Peach equivalents · Orange Magma equivalents