ΔE 6.1, close: similar, with a visible difference side by side. Black (Metallic) is a little lighter than Gloss Aluminum.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Black (Metallic) is a little lighter than Gloss Aluminum.
The same difference applies the other way round: Gloss Aluminum is a little darker.
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 Gloss Aluminum on the colour wheel See Black (Metallic) on the colour wheel
All matches: Gloss Aluminum equivalents · Black (Metallic) equivalents