Just Color Picker - Free portable colour picker and colour editor for web designers, photographers, graphic designers and digital artists. Supports Windows and macOS.
Capture2text - Capture2Text enables users to quickly OCR a portion of the screen using a keyboard shortcut.
gpick - A color picker and color scheme creation tool.
TextSniper - Instantly extract any text from your Mac's screen
Instant Eyedropper - Identifying the color code of an object on the screen is usually an involved, multistep process:...
dpScreenOCR - Program to recognize text on screen