Bright Pale Yellow vs Off-White

How close are they?

ΔE 13.3, fair: the same colour family, but not a straight swap. Off-White is noticeably darker, more muted than Bright Pale Yellow.

Can I use Off-White instead of Bright Pale Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Off-White is noticeably darker, more muted than Bright Pale Yellow.

Can I use Bright Pale Yellow instead of Off-White?

The same difference applies the other way round: Bright Pale Yellow is noticeably lighter, more saturated.

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.