Oxford Blue

A blue is an award earned by athletes at a university and some schools for competition at the highest level. The awarding of blues began at Oxford and Cambridge universities in England. It is awarded at British, Australian and New Zealand universities.

The first sporting contest between the universities of Oxford and Cambridge was held on 4 June 1827, when a two-day cricket match at Lord's, organized by Charles Wordsworth, nephew of the poet William, resulted in a draw. There is no record of any university "colours" being worn during the game.

At the first Boat Race in 1829, the Oxford crew was dominated by students of Christ Church, whose college colours were dark blue. They wore white shirts with dark blue stripes, while Cambridge wore white with a pink or scarlet sash. At the second race, in 1836, a light blue ribbon was attached to the front of the Cambridge boat, probably as it was the colour of Eton. These colours — light blue for Cambridge, and dark blue for Oxford — became the official colours of the two boat clubs, and through the rivalry of the Boat Race, the colours became inextricably linked with the universities and contests between the two.

Athletes at the University of Cambridge may be awarded a Full Blue (or simply a Blue), Half Blue, First Team Colours or Second Team Colours for competing at the highest level of university sport, which must include being in a Varsity match or race against the University of Oxford. A Full Blue is the highest honour that may be bestowed on a Cambridge athlete, and is a much-coveted and prestigious prize. In general, the Full Blue standard is approximately that of being successful at a national level of student competition, and the Half Blue standard is that of being successful at county or regional level.

Once light blue had been chosen as the colour of Cambridge's Boat Club, the other university sport clubs followed suit, though out of courtesy would request permission from the Boat Club before awarding such a "Blue". In the 1860s the three senior sports — rowing, cricket and athletics — were awarding Blues, and the presidents of each formed an informal "Blues Committee" to oversee such awards. By 1880 a number of smaller clubs involved in Varsity matches had successfully requested the right to award "Half Blues".

...
Wikipedia