Red Brown vs Thondia Brown

How close are they?

ΔE 10.7, fair: the same colour family, but not a straight swap. Thondia Brown is a little darker, warmer than Red Brown.

Can I use Thondia Brown instead of Red Brown?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Thondia Brown is a little darker, warmer than Red Brown.

Can I use Red Brown instead of Thondia Brown?

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