ΔE 13.0, fair: the same colour family, but not a straight swap. Shin Gunto Gold is a little darker, more saturated, warmer than Old Gold.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Shin Gunto Gold is a little darker, more saturated, warmer than Old Gold.
The same difference applies the other way round: Old Gold is a little 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 Old Gold on the colour wheel See Shin Gunto Gold on the colour wheel
All matches: Old Gold equivalents · Shin Gunto Gold equivalents