Rust Ochre vs XV-88

How close are they?

ΔE 10.4, fair: the same colour family, but not a straight swap. XV-88 is a little darker, more saturated than Rust Ochre.

Can I use XV-88 instead of Rust Ochre?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). XV-88 is a little darker, more saturated than Rust Ochre.

Can I use Rust Ochre instead of XV-88?

The same difference applies the other way round: Rust Ochre is a little 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.