ΔE 10.7, fair: the same colour family, but not a straight swap. Pure Orange is a little lighter, more saturated than Ryza Rust.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Pure Orange is a little lighter, more saturated than Ryza Rust.
The same difference applies the other way round: Ryza Rust is a little darker, more muted.
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 Ryza Rust on the colour wheel See Pure Orange on the colour wheel
All matches: Ryza Rust equivalents · Pure Orange equivalents