There are tons of custom Flickr search options out there, but this one from Idee Labs is certainly one of the best. It’s called Multicolr Search Lab and it allows you to pick any combination of colors (see the right-hand side of the image above) and it will reveal all of the photos on Flickr — licensed under Creative Commons — that have those color combinations in it.

You can add or remove any number of colors as you wish which sort of make discovering new images on Flickr fun. It works surprisingly well. Go ahead and give it a spin.