Pastel Violet vs Dead White

How close are they?

ΔE 8.9, close: similar, with a visible difference side by side. Dead White is more muted than Pastel Violet.

Can I use Dead White instead of Pastel Violet?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Dead White is more muted than Pastel Violet.

Can I use Pastel Violet instead of Dead White?

The same difference applies the other way round: Pastel Violet is 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.