Color Hunter - Color Hunter is a place to find and make color palettes created from images.
Adobe Color CC - Generates color themes that can inspire any project.
Color Palette Generator - Enter the URL of an image and find its color palette
Palette Ninja - Create harmonious color schemes
Colormind - Colormind is a color scheme generator that offers deep learning for developers and front-end developers.
Paleta - Extract the dominant colors from any image.