Advanced Eyedropper, ColorPicker and other colorful goodies for Mozilla Firefox. Read more about ColorZilla
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How to Grab Any Color Code in ColorZilla (Chrome Extension) Video
If you see a color you really like, on any page, including the colors of an image, a photography — anything, then you can use ColorZilla, a really awesome Chrome Extension that makes it possible to grab color codes in several formats: hex, rgba& hsl. Link to the ColorZilla extension: