Elven Armour vs Royal Burgundy

How close are they?

ΔE 30.2, loose: different enough that you should pick on purpose. Royal Burgundy is a little lighter, much more muted, cooler than Elven Armour.

Can I use Royal Burgundy instead of Elven Armour?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 30). Royal Burgundy is a little lighter, much more muted, cooler than Elven Armour.

Can I use Elven Armour instead of Royal Burgundy?

The same difference applies the other way round: Elven Armour is a little darker, much more saturated, warmer.

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.