Dark Leather vs Bad Bruise

How close are they?

ΔE 10.9, fair: the same colour family, but not a straight swap. Bad Bruise is more saturated than Dark Leather.

Can I use Bad Bruise instead of Dark Leather?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Bad Bruise is more saturated than Dark Leather.

Can I use Dark Leather instead of Bad Bruise?

The same difference applies the other way round: Dark Leather is 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.