One does not have to be a genius web developer to change the colors of his/her WordPress theme. Knowing some CSS would definitely help though. Not everyone knows CSS too well. Besides, your clients may not know anything about this technology. Theme Tweaker is a cool plugin that could help. It displays the existing colors of your theme and shows you how to change them.
Theme Tweaker comes with a color picker that lets you change the colors of your theme easily. You can change them all in bulk, invert them, or use grey scale. The changes you make can be previewed. Once you are done, just activate them. What’s neat about this theme tweaker is the fact that you can save your work and come back to it later.
Theme Tweaker does have a pro version that offers more features, including the ability to generate and download style.css. You can also create child themes with your changes to make things easier for yourself. Theme Tweaker may not work with every theme but can be a time saver.