Sycorax Bronze vs Iridescent Copper (Fine)

How close are they?

ΔE 11.5, fair: the same colour family, but not a straight swap. Iridescent Copper (Fine) is a little darker, cooler than Sycorax Bronze. They are different kinds of paint: Citadel Sycorax Bronze is a metallic and Golden Iridescent Copper (Fine) is a pearl paint, so they won’t behave the same on the model even where the colour is close.

Can I use Iridescent Copper (Fine) instead of Sycorax Bronze?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Iridescent Copper (Fine) is a little darker, cooler than Sycorax Bronze. They are different kinds of paint.

Can I use Sycorax Bronze instead of Iridescent Copper (Fine)?

The same difference applies the other way round: Sycorax Bronze is a little lighter, warmer.

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.