Khorne Red vs Violet Oxide

How close are they?

ΔE 9.3, close: similar, with a visible difference side by side. Violet Oxide is more muted than Khorne Red.

Can I use Violet Oxide instead of Khorne Red?

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

Can I use Khorne Red instead of Violet Oxide?

The same difference applies the other way round: Khorne Red 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.