Luxion Purple vs Amethyst Purple

How close are they?

ΔE 7.4, close: similar, with a visible difference side by side. Amethyst Purple is a little lighter, more muted than Luxion Purple. They are different kinds of paint: Citadel Luxion Purple is a one-coat contrast-style paint and Green Stuff World Amethyst Purple is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.

Can I use Amethyst Purple instead of Luxion Purple?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Amethyst Purple is a little lighter, more muted than Luxion Purple. They are different kinds of paint.

Can I use Luxion Purple instead of Amethyst Purple?

The same difference applies the other way round: Luxion Purple is a little darker, 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.