xcolor jQuery plugin implements an extensive color parser and a featureful set of color-manipulation methods. There is also an
animate() extension to smooth CSS colors. The color value can also be passed in different color models: RGB, HSV/HSB, HSL and their adequate alpha extensions.
jQuery colorpicker with themeroller styling, RGB, HSL, CMYK and L*A*B support. Standard look & feel, configurable layout. Works as a popup or inline.
Spectrum is a jQuery colorpicker plugin that comes with many features and options.
Polyfill : Spectrum has a polyfill for the
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.