DCHP-1 Online
Bleu [< Cdn F] 
n. a Quebec Conservative, so called because the traditional color of the Conservative party is blue.
See also: Rouge
- 1885 The Mail is frantic over the defection of the rank and file of the Bleus in Quebec.
- 1946 Among the French, the word "Bleu" did not necessarily mean "Conservative": George Etienne Cartier insisted on calling himself a "Reformer" as late as 1857, three years after the coalition.
- 1963 . . . the Quebec voters' traditional loyalties have been strained to the limit and the real tug of war no longer is between the rouges and the bleus--the Liberals and the Tories--but between the "old" and the "new" parties.
- 1885 The Mail is frantic over the defection of the rank and file of the Bleus in Quebec.