Champagne Gold vs Aged Metal

How close are they?

ΔE 6.8, close: similar, with a visible difference side by side. Aged Metal is more saturated than Champagne Gold.

Can I use Aged Metal instead of Champagne Gold?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Aged Metal is more saturated than Champagne Gold.

Can I use Champagne Gold instead of Aged Metal?

The same difference applies the other way round: Champagne Gold 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.