History Of Pink Colour:
In the 17th century, the word pink or pinke was also used to describe a yellowish pigment, which was mixed with blue colors to yield greenish colors. Thomas Jenner’s A Book of Drawing, Limning, Washing (1652) categorizes “Pink & blew bice” amongst the greens (p. 38), and specifies several admixtures of greenish colors made with pink—e.g. “Grasse-green is made of Pink and Bice, it is shadowed with Indigo and Pink … French-green of Pink and Indico [shadowed with] Indico” (pp. 38–40). In William Salmon’s Polygraphice (1673), “Pink yellow” is mentioned amongst the chief yellow pigments (p. 96), and the reader is instructed to mix it with either Saffron or Ceruse for “sad” or “light” shades thereof, respectively.
The association of pink with girls dates to the modern era, probably developing at different times in different countries. In 1856, it was reported that Napoleon III and Empress Eugénie of France prepared outfits with blue trimmings for the anticipated birth of a son, but their reasons were religious in that the son was to be dedicated to the Virgin Mary, whose traditional color was blue. An 1868 American source, Louisa May Alcott’s Little Women refers to French fashion’s assignment of colors−”Amy put a blue ribbon on the boy and a pink on the girl, French fashion, so you can always tell [them apart].”−but it is unclear whether the French fashion was to use colors to distinguish between children or between boys and girls. Before the 20th century, European countries varied, with some assigning colors based on the baby’s complexion, and others assigning pink sometimes to boys and sometimes to girls.
In the United States, there was no established rule in the 19th century. A 1927 survey of ten department stores reported that pink was preferred for boys in six of them and for girls in four. The foremost student of the role of color in children’s fashion, Jo Paoletti, found that “By the 1950s, pink was strongly associated with femininity” but to an extent that was “neither rigid nor universal” as it later became.
Some date the origin of the association of pink with girls in the United States to the 1910s or 1920s. Many have noted the contrary association of pink with boys in 20th-century America. An article in the trade publication Earnshaw’s Infants’ Department in June 1918 said:
The generally accepted rule is pink for the boys, and blue for the girls. The reason is that pink, being a more decided and stronger color, is more suitable for the boy, while blue, which is more delicate and dainty, is prettier for the girl.