Pastel Pink vs Leopard Stone Skin

How close are they?

ΔE 6.5, close: similar, with a visible difference side by side. Leopard Stone Skin is more muted than Pastel Pink.

Can I use Leopard Stone Skin instead of Pastel Pink?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Leopard Stone Skin is more muted than Pastel Pink.

Can I use Pastel Pink instead of Leopard Stone Skin?

The same difference applies the other way round: Pastel Pink 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.