match.color.io - Automatically match colors of any image or movie with ML
Decode Me - Solve internet puzzles for mystery prizes
Colores - Find color palette ideas via image search
Alembic ⚗️ - A Sketch plugin to extract a color palette from your images
Cone - A delightful and easy to use color picker for the real world
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.