Ultimate Cup of Coffee vs USN Sea Blue

How close are they?

ΔE 11.6, fair: the same colour family, but not a straight swap. USN Sea Blue is a little darker than Ultimate Cup of Coffee.

Can I use USN Sea Blue instead of Ultimate Cup of Coffee?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). USN Sea Blue is a little darker than Ultimate Cup of Coffee.

Can I use Ultimate Cup of Coffee instead of USN Sea Blue?

The same difference applies the other way round: Ultimate Cup of Coffee is a little lighter.

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.