Jill Biden has been seen wearing purple on multiple occasions. She has sometimes mentioned wearing purple to signify unity, combining red and blue. For example, on the day of President Biden's inauguration on January 20, 2021, Jill Biden wore purple with a purpose because she knew the theme that President Biden was striking was unity. The color purple has since become associated with unity. It is also possible that Jill Biden wore purple for other personal or symbolic reasons on different occasions.