Image to Color Palette Generator This generator is still in beta, but works great. The design, well there is none. But what it lacks in design, it does work great for finding you colors in an image. You can upload an image via a URL Field submitter that will then display the image along with colors that can be found in the image. What’s different about this image color generator is, you can adjust the hue by using a slider bar back and forth to get the perfect color scheme!
Adobe Kuler http://kuler.adobe.com/ is my go-to suggestion for online color palette generators because it’s free, easy to use, and has algorithms if you’d like to practice your color theory-based palettes.