Royal blue

Royal blue is both a bright shade and a dark shade of azure blue. It is said to have been created by clothiers in Rode, Somerset, a consortium of whom won a competition to make a dress for Queen Charlotte, consort of King George III. Wikipedia CMYKH (c, m, y, k): (100, 66, 0, 60)

Hex triplet: #002366

SRGBB (r, g, b): (0, 35, 102)

HSV (h, s, v): (219°, 100%, 40%)

ISCC–NBS descriptor: Deep blue