Yandex.Images - search for images on the internet, search by image
Swatches - A fun and accurate color picker for the real world
SauceNAO - SauceNAO is a reverse image search engine.
ColorSnapper - The missing color picker for Mac.
Google Images - Google Images is a search service owned by Google that allows users to search the World Wide Web for image content.
Sketch Palettes - Sketch plugin to save and load colors into the color picker