ΔE 11.9, fair: the same colour family, but not a straight swap. Azure is a little lighter, more muted, warmer than Eldar Robe.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Azure is a little lighter, more muted, warmer than Eldar Robe.
The same difference applies the other way round: Eldar Robe is a little darker, 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 Eldar Robe on the colour wheel See Azure on the colour wheel
All matches: Eldar Robe equivalents · Azure equivalents