ΔE 6.2, close: similar, with a visible difference side by side. Raw Umber is a little darker than Noble Skin. They are different kinds of paint: Army Painter Noble Skin is a one-coat contrast-style paint and Golden Raw Umber is an ink, glaze or transparent 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 6). Raw Umber is a little darker than Noble Skin. They are different kinds of paint.
The same difference applies the other way round: Noble Skin is a little lighter.
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 Raw Umber on the colour wheel
All matches: Noble Skin equivalents · Raw Umber equivalents