Benzimidazolone Yellow Light vs Yellow Green

How close are they?

ΔE 15.7, loose: different enough that you should pick on purpose. Yellow Green is a little darker, cooler than Benzimidazolone Yellow Light.

Can I use Yellow Green instead of Benzimidazolone Yellow Light?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Yellow Green is a little darker, cooler than Benzimidazolone Yellow Light.

Can I use Benzimidazolone Yellow Light instead of Yellow Green?

The same difference applies the other way round: Benzimidazolone Yellow Light is a little 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.