Copper vs Fulgurite Copper

How close are they?

ΔE 13.5, fair: the same colour family, but not a straight swap. Fulgurite Copper is a little lighter, warmer than Copper.

Can I use Fulgurite Copper instead of Copper?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Fulgurite Copper is a little lighter, warmer than Copper.

Can I use Copper instead of Fulgurite Copper?

The same difference applies the other way round: Copper is a little darker, 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.