Color Palette Generator - Enter the URL of an image and find its color palette
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!
Site Palette - Get the essential colours from any website
Pandacolors - One click color generator with real time preview
Material Palette - Generate and export your Material Design color palette
Sketch Palettes - Sketch plugin to save and load colors into the color picker