ΔE 16.2, loose: different enough that you should pick on purpose. N8 Neutral Gray is much more muted than Pastel Seafoam. They are different kinds of paint: Army Painter Pastel Seafoam is a one-coat contrast-style paint and Golden N8 Neutral Gray is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). N8 Neutral Gray is much more muted than Pastel Seafoam. They are different kinds of paint.
The same difference applies the other way round: Pastel Seafoam is 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 Pastel Seafoam on the colour wheel See N8 Neutral Gray on the colour wheel
All matches: Pastel Seafoam equivalents · N8 Neutral Gray equivalents