If "contrast" refers to a difference or distinction:
* Similarity: Emphasizes shared characteristics or likeness.
* Agreement: Indicates shared opinions or a harmonious state.
* Harmony: Suggests a balance and lack of conflict.
* Resemblance: Highlights the likeness between things.
* Unity: Emphasizes togetherness and interconnectedness.
If "contrast" refers to a visual or artistic technique:
* Harmony: Suggests a balanced and unified visual composition.
* Blending: Indicates a smooth transition between different elements.
* Unity: Emphasizes the cohesiveness of the visual elements.
If "contrast" refers to the act of comparing:
* Comparison: Can be used as a synonym for contrast, but with a less pronounced emphasis on difference.
* Agreement: Indicates a shared viewpoint or perspective.
* Concord: Suggests a lack of disagreement or conflict.
Ultimately, the best opposite for "contrast" depends on the specific meaning you are trying to convey.