The Blue Boy (c. 1770) is an oil painting by Thomas Gainsborough that now resides in the Huntington Library, San Marino, California. The painting itself is on a fairly large canvas for a portrait that measures 48 inches wide by 70 inches tall. Perhaps Gainsborough's most famous work, it is thought to be a portrait of Jonathan Buttall, the son of a wealthy hardware merchant. Gainsborough had originally painted something different on the canvas but then decided to paint the portrait of the blue boy over it. It is a historical costume study as well as a portrait: the youth in his 17th-century apparel is regarded as Gainsborough's homage to Anthony Van Dyck, and in particular is very close to Van Dyck's portrait of Charles II as a boy (below).
It has been said that Gainsborough painted the portrait mainly to prove to his chief rival Joshua Reynolds that it was possible to use blue as the central color of a portrait, but this statement has been discredited: the rumor began circulating after Gainsborough's death and Reynolds had painted portraits in blue long before.[citation needed]
The painting was in Jonathan Buttall's possession until he filed for bankruptcy in 1796. It was bought first by the politician John Nesbitt and then, in 1802, by the portrait painter John Hoppner. In about 1809 The Blue Boy entered the collection of the Earl Grosvenor and remained with his descendants until its sale by the second Duke of Westminster to the dealer Joseph Duveen in 1921. In a move that caused a public outcry in Britain, it was then sold on to the American railway pioneer Henry Edwards Huntington for $182,200 (then a record price for any painting) (According to a mention in the New York Times, dated Nov. 11, 1921, the purchase price was $640,000). Before its departure to California in 1922, The Blue Boy was briefly put on display at the National Gallery where it was seen by 90,000 people; the Gallery's director Charles Holmes was moved to scrawl "Au revoir" on the back of the painting.