Apart from copying colors from the CSS code of the elements when inspecting with CSS Scan Pro, there are also 2 big features you can use to copy colors from websites:
Fell in love with a color you saw somewhere? Use Pro's color eyedropper - it works even if it's an image.
Point and click to get the color you're seeing.
Or you can also open it by clicking on "Color eyedropper" on the top bar.
It's simple: just hover your mouse over the color you want to copy, and click on it.
Analyze the entire palette of colors from a website in a second. Find the color you like, and just click on it to get its syntax.
Open it by clicking on "Color Palette" on the top bar.