DeOldify - Open-source deep learning project for colorizing and restoring old images
Color Palette Generator - Enter the URL of an image and find its color palette
CODIJY Pro Photo Colorization - Add colors to black & white photos and recolor images with surprizing ease!
Color Hunt - Curated collection of beautiful colors, updated daily
AKVIS Coloriage - AKVIS Coloriage manipulates colors of an image: from colorizing old black and white photos from your family archive to replacing colors in your color photos.
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!