The following websites will help you find the right colors for your project. Let's jump right in ...
This is the best resource I have ever visited for selecting colors, you should definitely check it out.
This website has a wide variety of flat colors for you to choose from. It's my second destination right after number 1.
This website is great for adjusting the color you picked from websites 1 and 2 and also for picking new colors.
This website offers great color combinations that are pre selected for your convenient