Zinc Chromate Yellow vs Aggaros Dunes

How close are they?

ΔE 9.6, close: similar, with a visible difference side by side. Aggaros Dunes is a little lighter, more muted, warmer than Zinc Chromate Yellow. They are different kinds of paint: AMMO by Mig Zinc Chromate Yellow is an opaque base/layer paint and Citadel Aggaros Dunes is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.

Can I use Aggaros Dunes instead of Zinc Chromate Yellow?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Aggaros Dunes is a little lighter, more muted, warmer than Zinc Chromate Yellow. They are different kinds of paint.

Can I use Zinc Chromate Yellow instead of Aggaros Dunes?

The same difference applies the other way round: Zinc Chromate Yellow is a little darker, more saturated, 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.