The color of a room can make a difference to how you feel when spending time in that space. This is also true of home office areas.
Do you work better when you are surrounded by bright and light colored walls, such as yellow or white? Or are you more productive when you have calming colors in your work space, like light blue or lavender?
Being aware of which colors you like and how they make you feel can help you select the color best suited to your home office.
To learn more about paint colors for home offices, some suggested reads are https://www.marthastewart.com/2220932/best-paint-colors-home-office and https://www.benjaminmoore.com/en-ca/project-ideas-inspiration/interiors/home-office-paint-colours.