Shari Goforth wrote:

 <http://www.praxispost.com/post/random/051601>  "Most synesthetes report being hounded into silence about their condition during childhood, and were relieved to find other synesthetes in adulthood. But Vladimir Nabokov had parents with the condition; as a child, he used to argue with his mother about the exact color of certain letters. In Nabokov's 1966 autobiography, Speak, Memory, the Russian-born writer wrote that 'The long 'A' of the English alphabet . . . has for me the tint of weathered wood, but the French 'A' evokes polished ebony. I see Q as browner than K while S is not the light blue of C, but a curious mixture of azure and mother-of-pearl.'” --Shari Goforth