A new option in Google Image Search lets you restrict the search 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: Here's the URL: http://images.google.com/images?q=bird&imgcolor=red
(you can replace "red" with "blue", "green", "teal", "purple", "yellow", "orange", "pink", "white", "gray", "black" and "brown")

The screenshot shows, the search results for our search in the above URL of [red bird].

Source:→ Google System