The King of the Mountains jersey has white with red polka dots, as in the Tour de France, since the race's takeover by ASO. The classification was introduced in 1952 and the jersey colour changed several times. In the 1970s it was yellow and red; later, it was white and purple. In 1984 the jersey became yellow and blue (the colors of sponsor Crédit Lyonnais); the following year, it was blue. Agrigel became its sponsor in 1990, and changed the colors to yellow and blue.