Slaanesh Grey vs Mead Violet

How close are they?

ΔE 9.3, close: similar, with a visible difference side by side. Mead Violet is more saturated, warmer than Slaanesh Grey.

Can I use Mead Violet instead of Slaanesh Grey?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Mead Violet is more saturated, warmer than Slaanesh Grey.

Can I use Slaanesh Grey instead of Mead Violet?

The same difference applies the other way round: Slaanesh Grey is more muted, cooler.

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.