ΔE 23.1, loose: different enough that you should pick on purpose. Clear Orange is noticeably darker, more muted, cooler than Orange Rust.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Clear Orange is noticeably darker, more muted, cooler than Orange Rust.
The same difference applies the other way round: Orange Rust is noticeably 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.
See Orange Rust on the colour wheel See Clear Orange on the colour wheel
All matches: Orange Rust equivalents · Clear Orange equivalents