Knight-Questor Flesh vs Rust Orange

How close are they?

ΔE 14.8, fair: the same colour family, but not a straight swap. Rust Orange is noticeably lighter, more saturated than Knight-Questor Flesh.

Can I use Rust Orange instead of Knight-Questor Flesh?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Rust Orange is noticeably lighter, more saturated than Knight-Questor Flesh.

Can I use Knight-Questor Flesh instead of Rust Orange?

The same difference applies the other way round: Knight-Questor Flesh is noticeably 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.