ΔE 9.8, close: similar, with a visible difference side by side. Rakarth Flesh is a little darker, more saturated than Sky Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Rakarth Flesh is a little darker, more saturated than Sky Grey.
The same difference applies the other way round: Sky Grey is a little lighter, more muted.
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 Sky Grey on the colour wheel See Rakarth Flesh on the colour wheel
All matches: Sky Grey equivalents · Rakarth Flesh equivalents