Both Uses

contrast
in
The Selection, by Kiera Cass
(Edited)

It was like he knew how to treat a lady, he just didn't know how to treat a date. It was quite a contrast to Aspen.
p. 183.5 *

contrast = something notably different compared (to something)
In stark contrast to the person in uniform yesterday, he looked more boyish, more real.
p. 225.1

contrast = difference

Definitions:

(1) (contrast as in: contrast their writing styles)
point to differences between; or compare to show differences
(2) (contrast as in: there is a contrast)
a difference -- especially a notable difference; or the side-x-side arrangement of things that draws attention to an unmissable difference
(3) (contrast as in: sharpen the picture contrast)
the difference between tones of an image -- as in a photo or video -- such as the quality of brightness or the intensity of shades or colors
(4) (meaning too rare to warrant focus)