Bad Moon Yellow vs Limelight

How close are they?

ΔE 60.5, loose: different enough that you should pick on purpose. Limelight is noticeably darker, much more muted, cooler than Bad Moon Yellow.

Can I use Limelight instead of Bad Moon Yellow?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 60). Limelight is noticeably darker, much more muted, cooler than Bad Moon Yellow.

Can I use Bad Moon Yellow instead of Limelight?

The same difference applies the other way round: Bad Moon Yellow is noticeably lighter, much more saturated, 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.