Ash Black vs Regiment Grey

How close are they?

ΔE 7.9, close: similar, with a visible difference side by side. Regiment Grey is a little darker than Ash Black. They are different kinds of paint: AMMO by Mig Ash Black is an ink, glaze or transparent paint and Army Painter Regiment Grey is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.

Can I use Regiment Grey instead of Ash Black?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Regiment Grey is a little darker than Ash Black. They are different kinds of paint.

Can I use Ash Black instead of Regiment Grey?

The same difference applies the other way round: Ash Black is a little lighter.

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.