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