Among the coolest of the cool color names, particularly popular with celebs as a unisex middle name.
Blue is suddenly in the spotlight, as the unusual color name chosen by Beyonce and Jay-Z for their baby girl. Blue is also a starbaby middle name du jour, used for both sexes in different spellings and forms, from John Travolta and Kelly Preston's Ella Bleu to Alicia Silverstone's Bear Blu. Dave 'The Edge' Evans named his daughter Blue Angel back in 1989.
Blue is the heroine of the trendy novel Special Topics in Calamity Physics.