A while ago, I wrote about the Adobe Color Wheel here, which helps design noobies to create a color scheme for their product using colors that fit together. The challenge with Color Wheel is, that you still need a “feeling” for colors to create a good looking scheme.
Colormind goes one step further and literally generates you a complete color scheme without having the user know anything about colors. It also offers pre-defined schemes for Christmas, Spring and more. When you are struggling with color schemes, colormind.io might be something for you!