ΔE 6.4, close: similar, with a visible difference side by side. N8 Neutral Gray is a little darker than Wrack White. They are different kinds of paint: Citadel Wrack White is an opaque base/layer 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.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). N8 Neutral Gray is a little darker than Wrack White. They are different kinds of paint.
The same difference applies the other way round: Wrack White is a little lighter.
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 Wrack White on the colour wheel See N8 Neutral Gray on the colour wheel
All matches: Wrack White equivalents · N8 Neutral Gray equivalents