Dark Warm Grey vs IJA Khaki Brown

How close are they?

ΔE 12.2, fair: the same colour family, but not a straight swap. IJA Khaki Brown is a little lighter, more saturated than Dark Warm Grey.

Can I use IJA Khaki Brown instead of Dark Warm Grey?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). IJA Khaki Brown is a little lighter, more saturated than Dark Warm Grey.

Can I use Dark Warm Grey instead of IJA Khaki Brown?

The same difference applies the other way round: Dark Warm Grey is a little darker, 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.