Regal red, fit for a grand duchy's ceremonial uniform.
Grand Duke is a rich red.
It can be described as rich, full, medium and fairly saturated.
Set in black, because black reads best on it.
Grand duke is a European hereditary title, used either by certain monarchs or by members of certain monarchs' families. The title is used in some current and former independent monarchies in Europe titled as Grand Duchy, particularly:
Read on WikipediaDuke is a male title either of a monarch ruling over a duchy, or of a member of royalty, or nobility. As rulers, dukes are ranked below emperors, kings, grand princes, grand dukes, and above sovereign princes. As royalty or nobility, they are ranked below grand dukes and above or below princes, depending on the country or specific title. The title comes from French duc, itself from the Latin dux, 'leader', a term used in republican Rome to refer to a military commander without an official rank, and later coming to mean the leading military commander of a province. In most countries, the word duchess is the female equivalent.
Read on WikipediaNoun