Duotones is the fourth studio album by saxophonist Kenny G. It was released by Arista Records in 1986.

A common printing technique in which a halftone is printed in two colours -- most often black with another colour.

A common printing technique by which a halftone is printed in two ink colors--most often black and another color (screen angles 45 degrees and 105 degrees).

An image printed in two colours rather than one (greyscale). Normally, black is used together with a further colour. Duotone is used as an alternative to standard greyscale images, as the technique offers a softer, more detailed result.