Skala Color is a compact and feature-rich OS X color picker that works with a huge variety of formats, covering everything you're likely to need for web, iOS, Android, and OS X development (Hex, CSS RGBA, CSS HSLA, UIColor, NSColor and more). It also automatically recognises colors copied to the clipboard, presenting them as a swatch that can be applied with a single click.
Grab colors from your desktop or other applications
COLOR MANAGER Software is a robust desktop application.
This program helps you identify and save color codes on your Mac.
Software Products Colorspace RGB color wheel, selector and picker
Picks HSB, RGB, and HEX colors from various elements and images.