ΔE 12.9, fair: the same colour family, but not a straight swap. Off-White is a little darker, more muted, warmer than Twin Suns Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Off-White is a little darker, more muted, warmer than Twin Suns Yellow.
The same difference applies the other way round: Twin Suns Yellow is a little lighter, more saturated, 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 Twin Suns Yellow on the colour wheel See Off-White on the colour wheel
All matches: Twin Suns Yellow equivalents · Off-White equivalents