ΔE 7.3, close: similar, with a visible difference side by side. Deepkin Flesh is a little lighter, warmer than Grime. They are different kinds of paint: AMMO by Mig Grime is an ink, glaze or transparent paint and Citadel Deepkin Flesh 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 7). Deepkin Flesh is a little lighter, warmer than Grime. They are different kinds of paint.
The same difference applies the other way round: Grime is a little darker, 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.
See Grime on the colour wheel See Deepkin Flesh on the colour wheel
All matches: Grime equivalents · Deepkin Flesh equivalents