Ochre Clay vs Limelight

How close are they?

ΔE 37.8, loose: different enough that you should pick on purpose. Limelight is noticeably darker, much more muted, cooler than Ochre Clay.

Can I use Limelight instead of Ochre Clay?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 38). Limelight is noticeably darker, much more muted, cooler than Ochre Clay.

Can I use Ochre Clay instead of Limelight?

The same difference applies the other way round: Ochre Clay 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.