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.
sweep.js is a small JavaScript library that enables proper color transitions through the HSL and HUSL spaces. Ordinary CSS transitions or some frameworks convert HSL colors to RGB before transitioning. sweep.js addresses this by letting you transition through the color spectrum.
PleaseJS is a JavaScript library for creating random pleasing colors and color schemes.
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.
Trianglify is a javascript library for generating colorful triangle meshes that can be used as SVG images and CSS backgrounds.
Picker is a simple, easy to use, versatile and customizable Javascript colour picker.
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=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.
