http://rgb.to is an free online tool that lets you convert colors between the most popular formats (RGB, HSL, HSB, Hex, CMYK...).<p>Now also supports Pantone and RAL color systems allowing you to convert these color formats and find the closest color in the charts to one given by you.<p>You can also generate simple color schemes from any color and download them in PNG or JSON format.<p>I'm beta-testing it right now, so any comment / suggestion / bug report it's welcome.<p>Best regards.
Carlos Cabo