Midnight.js is a jQuery plugin that switches between multiple header designs as you scroll, so you always have a header that looks great with the content below it.
randomColor generates attractive colors by default. More specifically, randomColor produces bright colors with a reasonably high saturation. This makes randomColor particularly useful for data visualizations and generative art.
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.
Background Check is a plugin that automatically switch to a darker or a lighter version of an element depending on the brightness of images behind it.
Colpick is a lightweight jQuery color picker plugin with RGB, HSB and HEX fields, several skins and layouts.
TinyColor is a micro framework for inputting colors and outputting colors as different formats. Input is meant to be as permissive as possible.
The following color types are supported: RGB, HSL, HSV, Hex, Name (from SVG color codes)
Adaptive Backgrounds is a simple jQuery plugin to extract the dominant color of an image and apply it to the background of its parent element.
imgcolr is a jQuery plugin for grabbing the dominant color of a given image's borders. You can programmably adapt the elements' color on the webpage for the image after getting the color.
jQuery colorpicker with themeroller styling, RGB, HSL, CMYK and L*A*B support. Standard look & feel, configurable layout. Works as a popup or inline.
randomizeColor is a jQuery plugin to randomize the text and / or background color on mouse over.
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.