ΔE 9.8, close: similar, with a visible difference side by side. Foxhide Brown is a little darker than Trollslayer Orange.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Foxhide Brown is a little darker than Trollslayer Orange.
The same difference applies the other way round: Trollslayer Orange 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 Trollslayer Orange on the colour wheel See Foxhide Brown on the colour wheel
All matches: Trollslayer Orange equivalents · Foxhide Brown equivalents