All of our services can be used through an App or via API, and separately or as a part of a more complex solution assembled together via Flows.
In our App, you can find the Dominant Colors under the Ready-to-use Image Recognition services. It is available to all pricing plans, including Free. You can upload images with URLs or by drag-and-drop.
You can also text the service in our public demo. Go to: Test in a public demo App Login API Documentation