ΔE 6.6, close: similar, with a visible difference side by side. Peachy Flesh is more muted than Chibi Skin. They are different kinds of paint: AMMO by Mig Chibi Skin is an opaque base/layer paint and Army Painter Peachy Flesh is a one-coat contrast-style 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). Peachy Flesh is more muted than Chibi Skin. They are different kinds of paint.
The same difference applies the other way round: Chibi Skin is more saturated.
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 Chibi Skin on the colour wheel See Peachy Flesh on the colour wheel
All matches: Chibi Skin equivalents · Peachy Flesh equivalents