I like these color palette generators. I like the idea of being able to perfectly match a color scheme with a photo. I do have a couple related gripes regarding their usefulness, however. For one thing, nobody uses just one photo on their website. No, you’ll have lots more and it will be very difficult to find an image that has the exact colors that you got from that photo.
My other gripe is the colors that are generated. A lot of times color schemes will be generated that have very little contrast or difference between colors. So you’ll get a light green and a little lighter green. That’s not too useful in my opinion. Do you use these color generators?