Lime Green vs Rainforest

How close are they?

ΔE 11.0, fair: the same colour family, but not a straight swap. Rainforest is a little darker, cooler than Lime Green.

Can I use Rainforest instead of Lime Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Rainforest is a little darker, cooler than Lime Green.

Can I use Lime Green instead of Rainforest?

The same difference applies the other way round: Lime Green 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.