Warm Yellow vs Barren Yellow

How close are they?

ΔE 13.0, fair: the same colour family, but not a straight swap. Barren Yellow is noticeably darker, cooler than Warm Yellow.

Can I use Barren Yellow instead of Warm Yellow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Barren Yellow is noticeably darker, cooler than Warm Yellow.

Can I use Warm Yellow instead of Barren Yellow?

The same difference applies the other way round: Warm Yellow is noticeably lighter, 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.