AndreaMosaic - With AndreaMosaic you can create your own photographic mosaics made with your own pictures.
Color Palette Generator - Enter the URL of an image and find its color palette
Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
Adobe Color CC - Generates color themes that can inspire any project.
Mosaic Creator - Mosaic Creator is professional mosaic tool. You can create your own picture mosaic.
Material Palette - Generate and export your Material Design color palette