Steel Helmet Green vs Gangrene

How close are they?

ΔE 11.7, fair: the same colour family, but not a straight swap. Gangrene is noticeably darker, more saturated than Steel Helmet Green.

Can I use Gangrene instead of Steel Helmet Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Gangrene is noticeably darker, more saturated than Steel Helmet Green.

Can I use Steel Helmet Green instead of Gangrene?

The same difference applies the other way round: Steel Helmet Green is noticeably lighter, more muted.

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.