Portland Stone No.64 vs Corpse Pale

How close are they?

ΔE 7.3, close: similar, with a visible difference side by side. Corpse Pale is a little lighter, more muted than Portland Stone No.64.

Can I use Corpse Pale instead of Portland Stone No.64?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Corpse Pale is a little lighter, more muted than Portland Stone No.64.

Can I use Portland Stone No.64 instead of Corpse Pale?

The same difference applies the other way round: Portland Stone No.64 is a little darker, 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.