ΔE 9.4, close: similar, with a visible difference side by side. Deck Grey is a little darker, more muted than Corpse Pale.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Deck Grey is a little darker, more muted than Corpse Pale.
The same difference applies the other way round: Corpse Pale is a little lighter, 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 Corpse Pale on the colour wheel See Deck Grey on the colour wheel
All matches: Corpse Pale equivalents · Deck Grey equivalents