The phrase "a direct contrast" is correct and usable in written English.
It can be used when discussing differences between two or more things in a clear and straightforward manner.
Example: "The study presents a direct contrast between urban and rural living conditions."
Alternatives: "a clear difference" or "a stark contrast".
Coben's gregarious and voluble personality stands in a direct contrast to his occasionally grim books.
The tone of Sarah Woods's play Borderland was a direct contrast.
This book is a direct contrast to his letters, where it is rare to find a single error".
By raising more money from those buying expensive homes, it is a direct contrast with Labour's mansion tax.
O'Rourke offered a direct contrast to Trump's rhetoric during his opposing rally less than a mile away from the president's event.
A statement signing for its own sake is always dangerous, and certainly sits at a direct contrast to anything Arsene Wenger has ever espoused.
It took place before the main masque, concentrated on grotesque elements, and provided a direct contrast to the elegance of the masque that followed.
The photographs he created are, in their softly lit, neon poetry, a direct contrast to the clamour and movement of William Klein's New York images or the out-of-kilter kinetic energy that characterises Gary Winogrand's street photographs.
The opulence and glamour of the ball club is a painfully direct contrast to the instability of their financial situation and home life, but they're survivors.
And when he gives an interview for a piece that provides a portrayal in direct contrast with his actual behavior, he's going to get it.
In each inclusive mask analysis, the statistic parametric map of the random-effects analysis of the experimental condition A-versus-control condition direct contrast was used as an inclusive mask in the random-effects analysis of the experimental condition A-versus-experimental condition B direct contrast.
