Both Uses

contrast
in
Breaking Dawn, by Meyer
(Auto-generated)

Alice's short black hair was not in its usual spiky do—it was smoothed into sleek pin curls around her pixie face, which wore a contrastingly businesslike expression.†
Book 1 *
Benjamin's face looked colder than I'd ever seen it; the expression contrasted oddly with his boyish features.†
Book 3 *

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)