On 01.16.08, In Javascript, by Dan Tamas
Sometimes we need to make some color choosing in our web interfaces. There is no way to put user to write a hexa code to describe the color he wants, so we may use a color picker. It’s fancy too 
Photoshop-like JavaScript Color Picker
How to Create a Color Picker in JavaScript
Update with more JS color pickers
Honza Odvarko added his color picker,jscolor ,a pretty nice one. Here is a screenshot:
I hope to have enough time to add more info to others resources in this post.
3 Responses
http://www.colourlovers.com/blog/2008/01/16/free-advanced-dhtml-color-picker/
another color picker
[...] Javascript Color Picker Could come in handy someday. These icons link to social bookmarking sites where readers can share and discover new web pages. [...]
Another one, mine
http://jscolor.com