I found this neat website COLR.ORG where you can choose a favorite photo (one of your own, or from another website) and pull colors from it, creating a palette, or just choosing one shade.
I plan to use it as inspiration (using photos of my sample items) when I'm creating ads for my new patterns.
You can see the screen shot below where I chose colors from the tulip photo and created a palette I liked. (click on it to make it larger if you like). I'm thinking there are lots of things you can do with this site, but I just started exploring tonight!