Nurgling Green vs Sky BS381C/210

How close are they?

ΔE 12.2, fair: the same colour family, but not a straight swap. Sky BS381C/210 is noticeably lighter, more muted than Nurgling Green.

Can I use Sky BS381C/210 instead of Nurgling Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Sky BS381C/210 is noticeably lighter, more muted than Nurgling Green.

Can I use Nurgling Green instead of Sky BS381C/210?

The same difference applies the other way round: Nurgling Green is noticeably darker, more saturated.

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.