ΔE 7.1, close: similar, with a visible difference side by side. Succubus Skin is a little lighter, cooler than Fired Clay.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Succubus Skin is a little lighter, cooler than Fired Clay.
The same difference applies the other way round: Fired Clay is a little darker, warmer.
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 Fired Clay on the colour wheel See Succubus Skin on the colour wheel
All matches: Fired Clay equivalents · Succubus Skin equivalents