Green Base vs Bright Green

How close are they?

ΔE 10.2, fair: the same colour family, but not a straight swap. Bright Green is a little lighter, warmer than Green Base.

Can I use Bright Green instead of Green Base?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Bright Green is a little lighter, warmer than Green Base.

Can I use Green Base instead of Bright Green?

The same difference applies the other way round: Green Base is a little darker, cooler.

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.