I've been building web applications for quite some time now and there's one facet of it that I find very annoying whenever I'm starting out a new project. I'm a very choosy person so I often end up spending a significant amount of time figuring out the best possible colour-scheme for my website rather than writing the actual code.
To solve this problem, I ended up creating Awesome Color Picker that allows you to generate awesome colour schemes for your websites and web-apps. It provides you with a preview as well so that you can visualize what combination of colours would be the best suited for your project.
I'm looking forward to adding more features including a custom gradient generator and more preview templates for web apps and mobile apps.
Let me know in the comment section what other features you might want it to have.
Edit: It's not optimised for phones yet. It's just a prototype and I wanted to share it with everyone. I'm still working on it.