ΔE 6.2, close: similar, with a visible difference side by side. Radiant Platinum is a little darker, warmer than Galvanized Steel.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Radiant Platinum is a little darker, warmer than Galvanized Steel.
The same difference applies the other way round: Galvanized Steel is a little lighter, cooler.
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 Galvanized Steel on the colour wheel See Radiant Platinum on the colour wheel
All matches: Galvanized Steel equivalents · Radiant Platinum equivalents