ΔE 14.5, fair: the same colour family, but not a straight swap. Noble Steed Brown is a little darker, more muted, warmer than Dark DAK Sand.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Noble Steed Brown is a little darker, more muted, warmer than Dark DAK Sand.
The same difference applies the other way round: Dark DAK Sand 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.
See Dark DAK Sand on the colour wheel See Noble Steed Brown on the colour wheel
All matches: Dark DAK Sand equivalents · Noble Steed Brown equivalents