Rootpath vs Dark Beige

How close are they?

ΔE 8.6, close: similar, with a visible difference side by side. Dark Beige is a little lighter, warmer than Rootpath.

Can I use Dark Beige instead of Rootpath?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Dark Beige is a little lighter, warmer than Rootpath.

Can I use Rootpath instead of Dark Beige?

The same difference applies the other way round: Rootpath is a little 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.