Googling by Color
Apr. 2, 2009 by mklaneski
Search For Images By Color
New from Google image search: Find Images that Contain a Certain Color.
Google Image Search has a new option that lets you restrict the results based on their color. For now, the option is not available in the user interface, but you can tweak the search results URL to try it.
Just add the following to the end of the URL:
&imgcolor=red
Other colors supported are blue, green, teal, purple, yellow, orange, pink, white, gray, black and brown.
For example, if you ever need an image of a green dog, try this:

This is awesome!