I’ve long been a fan of FindIcons, it is a great resource to find legal graphics. Today they’ve launched a third service called ColorBlender - a great resource for web designers and artists meant for creating viable color palettes.
ColorBlender is a web-based tool for creating color palettes (here referred to as “blends”) for web design and other types of digital design. The main feature of the tool is to have a complete “blend” of 6 matching colors created when choosing only one “base” color. This makes it very quick and easy to create a color scheme for e.g. a website, as you can instantly use the colors for text, backgrounds, links, border etc.