Dark Mustard Khaki vs Walnut

How close are they?

ΔE 14.5, fair: the same colour family, but not a straight swap. Walnut is a little lighter, more muted, warmer than Dark Mustard Khaki.

Can I use Walnut instead of Dark Mustard Khaki?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Walnut is a little lighter, more muted, warmer than Dark Mustard Khaki.

Can I use Dark Mustard Khaki instead of Walnut?

The same difference applies the other way round: Dark Mustard Khaki is a little darker, more saturated, cooler.

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.