‘Oh, sure,’ agreed Wilson hurriedly and went toward the little office, mingling immediately with the cement color of the walls. A white ashen dust veiled his dark suit and his pale hair as it veiled everything in the vicinity – except his wife, who moved close to Tom.

F. Scott Fitzgerald

The Great Gatsby, Chapter 1. In the valley of ashes, there is a thick veil of gray dust that makes it look as if everything is made out of it. Especially George Wilson, who is wears his sadness and desolation like a gray suit. His wife Myrtle is having an affair with Tom Buchanan.