ΔE 26.6, loose: different enough that you should pick on purpose. Gold Brown is noticeably darker, more saturated, warmer than Champagne Gold Anodized Aluminum.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 27). Gold Brown is noticeably darker, more saturated, warmer than Champagne Gold Anodized Aluminum.
The same difference applies the other way round: Champagne Gold Anodized Aluminum is noticeably lighter, more muted, 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 Champagne Gold Anodized Aluminum on the colour wheel See Gold Brown on the colour wheel
All matches: Champagne Gold Anodized Aluminum equivalents · Gold Brown equivalents