The Deep Blue Good-by is the first of 21 novels in the Travis McGee series by American author John D. MacDonald. Commissioned in 1964 by Fawcett Publications editor Knox Burger, the book establishes for the series an investigative protagonist in a residential Florida base—as well as a cyclical form: All McGee novel titles have a color in them.

MacDonald: "At the request of Knox Burger, then at Fawcett, I attempted a series character. I took three shots at it to get one book with a character I could stay with. That was in 1964. Once I had the first McGee book, The Deep Blue Good-by, they held it up until I had finished two more, Nightmare in Pink and A Purple Place for Dying, then released one a month for three months. That launched the series."