Baneblade Brown vs US Sand

How close are they?

ΔE 15.2, loose: different enough that you should pick on purpose. US Sand is a little darker, more muted, cooler than Baneblade Brown.

Can I use US Sand instead of Baneblade Brown?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). US Sand is a little darker, more muted, cooler than Baneblade Brown.

Can I use Baneblade Brown instead of US Sand?

The same difference applies the other way round: Baneblade Brown is a little lighter, more saturated, 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.