I’ve been using this Cool Tool since it was release a few years back and like many of the products that come out of Adobe, it just gets better with age. Adobe Kuler is a free web-based application for creating and sharing color themes. It is incredibly powerful tool for Web designers but quite frankly it is pretty useful tool for anyone who works with color themes for anything (such as packaging or interior design).

Adobe applies the same color-theory algorithms found in its Creative Suite so you can easily generate color themes from scratch (using the color wheel), from an uploaded photo (or pulled in from Flickr), or started with one of 500 million themes donated by the Kuler community. Once created, your color theme can be imported into Photoshop, Illustrator, InDesign, Fireworks, or Flash. I could go on but this video from Adobe TV does a fine job summing up the features.

Recently, Adobe rolled out Kuler for Android v3.1 or higher (no iOS version as of yet but Adobe is working on it and you can be notified here when it is released).