"jarring contrast" is correct and can be used in written English.
You can use it to describe two ideas or items that are vastly different and that stand out in a negative or unpleasant way. For example, "The jarring contrast between the warm tropical beach and the cold blizzard outside was striking."
It would stand in jarring contrast to the rest of the Constitution.
A treadmill languished in the master bedroom, in jarring contrast to a backless settee.
The town of Brital, in Lebanon's Bekaa Valley, is a jarring contrast of poverty and ostentatious wealth.
He became moody, confused and delusional — even childish — a jarring contrast with the even-keeled, highly competent person he had been.
But in recent months, it has made headlines for the many attempts by antigovernment protesters to suspend democracy, a jarring contrast with its open, cosmopolitan image.
On the ground, the Democratic race in Iowa had become the tale of two campaigns marked by an unusually jarring contrast in tone and style.
Punchy chordal piano outbursts provide a jarring contrast and set up the combat between lyrical and chordal elements that will remain a musical obsession of this work.
The irony is that although this section is in jarring contrast with the overall outlook of the book, it contains the ideas that are popularly associated with Freud.
But then Daly and the Old Course are inevitably a jarring contrast: the tweedy tradition and understated class of St. Andrews with Daly's all-too-legendary lifestyle excesses.
To Jim, it seemed as if everyone in the house was on vacation: lazy dinners, campfires in the backyard — a jarring contrast with New Orleans.
His globe-trotting identity and animated personality are in jarring contrast to previous MasterCard chief executives, who were typically buttoned up, American and, often, Ivy League-educated.
