Meaning of “contrast” - Learner’s Dictionary

contrast

noun [ C, U ] us uk /ˈkɒntrɑːst/
The white of the shirt provides a nice contrast with the black of the jacket.There's a marked contrast between his performance last year and this year.I like the contrast of the old furniture in the new building.She's dark, in contrast with her fair sisters.Bill was very lazy at school, in stark contrast to his sister who worked hard.

B2 an obvious difference between two people or things:

The contrast between their lifestyles couldn't be greater.
The busy north coast of the island is in / sharp contrast to the peaceful south.
by/in contrast

B2 used to show that someone or something is completely different from someone or something else:

She's quite petite, in contrast with her tall sister.

(Definition of “contrast noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)