Imperial Blue

Quick answer：

Imperial Blue is a deep, rich blue color that has been historically associated with power and prestige, often seen in the uniforms of royalty and nobility. It is a shade of blue that can range from a dark, navy-like color to a lighter, more vibrant hue, depending on the exact formulation of the pigment used. In art and design, Imperial Blue is often used to convey a sense of sophistication and elegance.