Eldandil Violet vs Royal Purple

How close are they?

ΔE 11.6, fair: the same colour family, but not a straight swap. Royal Purple is a little darker, more muted, warmer than Eldandil Violet.

Can I use Royal Purple instead of Eldandil Violet?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Royal Purple is a little darker, more muted, warmer than Eldandil Violet.

Can I use Eldandil Violet instead of Royal Purple?

The same difference applies the other way round: Eldandil Violet 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.