What are the similarities and differences between harmony and unity?

Harmony is the sense that all of the elements of your design fit together. ... Unity refers to the repetition of particular elements throughout your design — whether they're colors, shapes or materials — to pull the look together. These principles are used to create a sense of cohesion in the space.

What is the difference between “Unity” and “Harmony”? Unity is achieved when each element of a design fits in with the overall concept of the production. It is defined by how those elements relate to the production as a whole. Harmony, on the other hand, is defined by how those same elements relate to each other.

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