Bright Green vs Goblin Green

How close are they?

ΔE 12.3, fair: the same colour family, but not a straight swap. Goblin Green is more saturated, cooler than Bright Green.

Can I use Goblin Green instead of Bright Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Goblin Green is more saturated, cooler than Bright Green.

Can I use Bright Green instead of Goblin Green?

The same difference applies the other way round: Bright Green is more muted, 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.