You can now narrow results by color in image search! (like in picasa):
Example:
http://images.google.com/images?imgcolor=yellow&hl=en&q=ferrari
http://images.google.com/images?imgcolor=red&hl=en&q=ferrari

(seen at twitter)

Cool! All of these additions and filters are making Google Images an amazing search companion.

Well.. it's not always that good.. :/
http://images.google.com/images?imgcolor=blue&hl=en&q=ferrari

I think it did fairly well, all the pics with Red in them DID have lots of blue also...

David
You think thats bad.... :P
http://images.google.com/images?imgcolor=black&hl=en&q=ferrari

As James said, there is a lot of that colour in the picture.

I was going to say "It looks for the colour theres the most of, it can't tell what the picture is of", but then I realised theres the face search, so maybe they could look for the shape of a car and tell what colour it is :/

lol Martin.. :P

In my article for Zorgloob, I've displayed this example

"hulk" in green
http://www.zorgloob.com/images2/hulk_green.png

"hulk" in red
http://www.zorgloob.com/images2/hulk_red.png

"hulk" in yellow
http://www.zorgloob.com/images2/hulk_yellow.png

:-)

Eh..
Nice Tom! :)

Zim:
Where did you see this on Twitter? When I posted about the feature, no other page mentioned it.

Good job uncovering this Ionut.

Wonder what else could be done in terms of image search types and restrictions?

Ionut: The source of the tweet turned out to be Matt Cutts [1], who retwited or read it at @googleos. I didn't noticed this, sorry!

[1] http://twitter.com/mattcutts/statuses/1364332905