Gorthor Brown vs Fur Cloak

How close are they?

ΔE 16.5, loose: different enough that you should pick on purpose. Fur Cloak is a little lighter, cooler than Gorthor Brown.

Can I use Fur Cloak instead of Gorthor Brown?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Fur Cloak is a little lighter, cooler than Gorthor Brown.

Can I use Gorthor Brown instead of Fur Cloak?

The same difference applies the other way round: Gorthor Brown 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.