WWI French Brown vs Rhinox Hide

How close are they?

ΔE 6.7, close: similar, with a visible difference side by side. Rhinox Hide is more muted, cooler than WWI French Brown.

Can I use Rhinox Hide instead of WWI French Brown?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Rhinox Hide is more muted, cooler than WWI French Brown.

Can I use WWI French Brown instead of Rhinox Hide?

The same difference applies the other way round: WWI French Brown is 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.