ΔE 8.4, close: similar, with a visible difference side by side. Moonstone Skin is cooler than Matt Dry Blood. They are different kinds of paint: AMMO by Mig Matt Dry Blood is an ink, glaze or transparent paint and Army Painter Moonstone Skin 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). Moonstone Skin is cooler than Matt Dry Blood. They are different kinds of paint.
The same difference applies the other way round: Matt Dry Blood is 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 Dry Blood on the colour wheel See Moonstone Skin on the colour wheel
All matches: Matt Dry Blood equivalents · Moonstone Skin equivalents