Colordot for iOS - A color picker for humans.
Just Color Picker - Free portable colour picker and colour editor for web designers, photographers, graphic designers and digital artists. Supports Windows and macOS.
MagicPicker - An advanced color picker for Photoshop & Illustrator 🎨
delicolour - GUI application used to choose colours
Adobe Color CC - Generates color themes that can inspire any project.
ColorSnapper - The missing color picker for Mac.