Fire Drake vs Rust

How close are they?

ΔE 11.9, fair: the same colour family, but not a straight swap. Rust is noticeably darker, more saturated than Fire Drake.

Can I use Rust instead of Fire Drake?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Rust is noticeably darker, more saturated than Fire Drake.

Can I use Fire Drake instead of Rust?

The same difference applies the other way round: Fire Drake is noticeably lighter, 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.