The now-ubiquitous robin's egg blue has made a gradual, deep seep into the American psyche. Why that particular hue? It was Empress Eugenie's favorite shade. Napoleon III's wife, she was a fashion plate imitated the world over. Additionally, turquoise gems were extremely popular in the 19th century. In fact, Victorian brides often gave their bridesmaids dove-shaped brooches in that color. Today, it's been said that the mere act of holding a little blue box makes a woman's heart beat a lot faster.