If you have a few minutes to waste, and who doesn't, I highly recommend you check out idee Multicolr Search Lab. This awesome photo search engine of sorts allow you to find pictures based on the colors you want to be in them.
|A search for blue, purple, black, and yellow|
You can add up to 10 colors in your search and you will get all sorts of photos. People, flowers, abstract, signs and the list goes on.
|A search for red and light green|
Next time you are thinking of looking through stock photo give this a try. WARNING: it's addicting.