Lavender vs Coven Purple

How close are they?

ΔE 7.9, close: similar, with a visible difference side by side. Coven Purple is more saturated, warmer than Lavender.

Can I use Coven Purple instead of Lavender?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Coven Purple is more saturated, warmer than Lavender.

Can I use Lavender instead of Coven Purple?

The same difference applies the other way round: Lavender 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.