Swatches - A fun and accurate color picker for the real world
Just Color Picker - Free portable colour picker and colour editor for web designers, photographers, graphic designers and digital artists. Supports Windows and macOS.
Chroma - Welcome to Chroma Cutlery Cnife - Manufacturer of kitchen knives, includes products and contact information.
delicolour - GUI application used to choose colours
Sketch Palettes - Sketch plugin to save and load colors into the color picker
Adobe Color CC - Generates color themes that can inspire any project.