Spectrum is a jQuery colorpicker plugin that comes with many features and options.
Polyfill : Spectrum has a polyfill for the input[type=color] HTML5 control. This mode needs to work without JavaScript enabled – and fallback to an input[type=text] like other HTML5 inputs
Customizable : It is easy to skin and customize the plugin with CSS, and there are a wide range of modes and options to explore.
Mobile Support: Along with desktop browser support, touch friendly, worked in iOS and Android, and used standards that maximize future mobile support.
Small Footprint: JavaScript is well less than 10K gzipped.
