Khaki Green vs Desert Webbing

How close are they?

ΔE 17.0, loose: different enough that you should pick on purpose. Desert Webbing is much more muted, warmer than Khaki Green.

Can I use Desert Webbing instead of Khaki Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Desert Webbing is much more muted, warmer than Khaki Green.

Can I use Khaki Green instead of Desert Webbing?

The same difference applies the other way round: Khaki Green is much 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.