ΔE 8.3, close: similar, with a visible difference side by side. Screaming Skull is a little darker, more saturated, cooler than Matt Beige. They are different kinds of paint: AMMO by Mig Matt Beige is an ink, glaze or transparent paint and Citadel Screaming Skull is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Screaming Skull is a little darker, more saturated, cooler than Matt Beige. They are different kinds of paint.
The same difference applies the other way round: Matt Beige is a little lighter, more muted, warmer.
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.
See Matt Beige on the colour wheel See Screaming Skull on the colour wheel
All matches: Matt Beige equivalents · Screaming Skull equivalents