Image Colour Transfer - A free-to-use browser-based application that allows an image to be recoloured to match the colours of another image using novel methods.
Color Palette Generator - Enter the URL of an image and find its color palette
Colores - Find color palette ideas via image search
Color Hunt - Curated collection of beautiful colors, updated daily
Alembic ⚗️ - A Sketch plugin to extract a color palette from your images
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!