Sentence:  I asked Quasimodo recently how he accomplished this , and he replied that he had painted his model `` a beautiful <WSD>shade</WSD> of red and then had her breathe on the canvas '' , which was his typical tongue-in-cheek way of chiding me for my lack of sensitivity . 
Meaning of the word marked with <WSD> tags:  a quality of a given color that differs slightly from another color