[cuppster]

Do you mean that the algo sorts on decreasing color frequency? i.e. you choose "blue" then the top results are images that are literally all "blue".

Usually when I want an image with a specific color, I don't want the entire image to be that color...

[hmbg]

I get what you're saying. Maybe you could throw in a lower bound of the hue variation of the image as a parameter into the search to find "natural looking" images but with prominent fields of the desired color.