ΔE 12.7, fair: the same colour family, but not a straight swap. Radiant Yellow is a little darker, cooler than Antique Gold.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Radiant Yellow is a little darker, cooler than Antique Gold.
The same difference applies the other way round: Antique Gold is a little lighter, warmer.
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 Antique Gold on the colour wheel See Radiant Yellow on the colour wheel
All matches: Antique Gold equivalents · Radiant Yellow equivalents