ΔE 7.6, close: similar, with a visible difference side by side. Light Rust is a little lighter, cooler than Camel Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Light Rust is a little lighter, cooler than Camel Brown.
The same difference applies the other way round: Camel Brown is a little darker, 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.
See Camel Brown on the colour wheel See Light Rust on the colour wheel
All matches: Camel Brown equivalents · Light Rust equivalents