ΔE 7.9, close: similar, with a visible difference side by side. Copper is a little lighter, more saturated than Hashut Copper.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Copper is a little lighter, more saturated than Hashut Copper.
The same difference applies the other way round: Hashut Copper is a little darker, 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.
See Hashut Copper on the colour wheel See Copper on the colour wheel
All matches: Hashut Copper equivalents · Copper equivalents