We know from many, many examples that patterns can be tricky to wear. Rep. Diana DeGette gave us a great example of how to do it right:
This blue pattern with ribbon piping trim is visually interesting and still works well on camera. This medium blue is a nice color on her, and the white in the pattern creates great contrast, complimenting the contrast between her dark hair and creamy skin. The trim is an unusual detail, making the jacket distinctive and giving it an air of higher quality.