ΔE 12.4, fair: the same colour family, but not a straight swap. Buff is a little darker, warmer than Pale Gold Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Buff is a little darker, warmer than Pale Gold Yellow.
The same difference applies the other way round: Pale Gold Yellow 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 Pale Gold Yellow on the colour wheel See Buff on the colour wheel
All matches: Pale Gold Yellow equivalents · Buff equivalents