Monster Brown vs IDF Gray 2 (-1981 Golan)

How close are they?

ΔE 13.6, fair: the same colour family, but not a straight swap. IDF Gray 2 (-1981 Golan) is a little darker, more muted, cooler than Monster Brown.

Can I use IDF Gray 2 (-1981 Golan) instead of Monster Brown?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). IDF Gray 2 (-1981 Golan) is a little darker, more muted, cooler than Monster Brown.

Can I use Monster Brown instead of IDF Gray 2 (-1981 Golan)?

The same difference applies the other way round: Monster Brown is a little lighter, more saturated, 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.