ColorMeta is a free color tool that provides information about colors including most used color conversions (HEX to RGB, CMYK, HSL, HSV).
You can use the color tools on this website to easily get information about a specific color, transform colors from hex to rgb, or even extract colors from an image.
You can also create color palettes to help you in your project. No mater if you're a web designer, a home decorator or a graphic designer - everyone needs a good color palette.
You can find lots of color palettes to get inspired or you can create your own and share it with your friends.