ΔE 9.0, close: similar, with a visible difference side by side. Graphite Gray is more muted than Noble Skin. They are different kinds of paint: Army Painter Noble Skin is a one-coat contrast-style paint and Golden Graphite Gray 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 9). Graphite Gray is more muted than Noble Skin. They are different kinds of paint.
The same difference applies the other way round: Noble 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 Noble Skin on the colour wheel See Graphite Gray on the colour wheel
All matches: Noble Skin equivalents · Graphite Gray equivalents