Helps Web Designers Find Lighter & Darker Colors

0to255 is a simple tool that helps web designers find lighter and darker colors based on any color. 0to255 cures your color manipulation woes. It’s fun, simple, and a huge time-saver.

Simply pick the color that you want to start with and 0to255 gives you a range of colors from black to white using an interval optimized for web design. Then, just click the variation you want to use and the hex code is automatically copied to your clipboard.

Source: http://0to255.com/