Have you seen this website yet? The Color Of At first I didn't understand how it worked, and then when I did -- kinda blew me away.
You enter a word in the search box, and it goes to the web and searches for images that go with that word. Then it tries to find common colors that correlate to the word, and it then creates a color composition based on the images it found online. (There is a much fancier explanation on the "about" page of their website.)
I entered "pumpkin" in the search box and this is the color collage I got:
Then I entered "joy" and got:
It is fun to try different words, like emotions, places, or food and see what comes up.