Desert Webbing vs IDF Gray 1 (-1981 Sinai)

How close are they?

ΔE 10.8, fair: the same colour family, but not a straight swap. IDF Gray 1 (-1981 Sinai) is a little darker, more muted, warmer than Desert Webbing.

Can I use IDF Gray 1 (-1981 Sinai) instead of Desert Webbing?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). IDF Gray 1 (-1981 Sinai) is a little darker, more muted, warmer than Desert Webbing.

Can I use Desert Webbing instead of IDF Gray 1 (-1981 Sinai)?

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