Brown Base FS-30108 vs Gorthor Brown

How close are they?

ΔE 13.4, fair: the same colour family, but not a straight swap. Gorthor Brown is noticeably lighter, warmer than Brown Base FS-30108.

Can I use Gorthor Brown instead of Brown Base FS-30108?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Gorthor Brown is noticeably lighter, warmer than Brown Base FS-30108.

Can I use Brown Base FS-30108 instead of Gorthor Brown?

The same difference applies the other way round: Brown Base FS-30108 is noticeably darker, cooler.

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.