Among the coolest of the cool color names, particularly popular with celebs as a unisex middle name. While most famous as the name of Beyonce and Jay-Z's daughter Blue Ivy, more than 60 percent of the babies named Blue are boys.

Milla originated as a diminutive of names like Camilla and Ludmilla, but has since become well established as a name in its own right in several European countries. Milla Jovovich is a Ukrainian-born actress and supermodel, while Milla is also used for a character in the novel and musical adaptation, Wicked.

Cozette is a delicate feminine name that likely evolved as a diminutive form of the French name Cosette, famously featured in Victor Hugo's novel 'Les Misérables.' The original name may derive from the French 'chose' meaning 'thing' used as a term of endearment, or possibly from the Greek 'kosmos' meaning 'order' or 'harmony.' The spelling with 'z' gives it a modern twist while maintaining its French charm. Cozette has a gentle, melodic quality that suggests refinement and femininity. Though rare in official records, it appeals to parents drawn to French-inspired names with literary connections. The name carries a romantic, vintage feel while still sounding fresh and distinctive in contemporary contexts.

Cosette is best known as the heroine of Les Miserables. In the Victor Hugo novel, Cosette was the nickname given to the girl named Euphrasie by her mother. Although Hugo invented the name, some etymologists believe it's a spin on Colette, originally a female short form of Nicolas.