Idéé labs holds several tools which let you find images in an ingenious manner.
- Via the Multicolor Search lab you can define up to 10 colors and it’ll search its database (or Flickr) for images with those colors.
- An other way of searching the by uploading (or referring to the url of) a pic via the BYO Image Search Lab.
- A third way is the Visual Search Lab where you combine a visual search (click an image to see images with the same color) along with tags (limit the resultset to a specific tag).
What impresses me most is the speed of it all. Neat neat neat!