UI Garage - Specific mobile and web design patterns for your inspiration
match.color.io - Automatically match colors of any image or movie with ML
Muzli - UI/UX and Design Inspiration Chrome Extension
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.
Design Hunt - Curated design inspiration for everyone
Color Palette Generator - Enter the URL of an image and find its color palette