ColorZilla is a free browser extension (Chrome and Firefox) with an eyedropper, a Photoshop-style color picker, a webpage color analyzer, and a CSS gradient generator, used by over 10 million people.
The webpage color analyzer extracts an entire color palette from any live page you're looking at, not merely one pixel at a time, which is faster than manually eyedropping several spots to reconstruct a site's palette.
Developers who want to quickly grab exact colors off any live webpage, with a color history that keeps recently picked values on hand.
It's completely free with no premium tier. Worth installing as a default browser extension rather than reaching for a separate paid color picker app.
