How to use Eyedropper tool in Photoshop
In Adobe Photoshop on the left side we can see tools and in tools, we can see two colors, top color is called foreground color and behind this another color that is called background color. See below image.
If you want to change any color just click on the color then you can color panel and you can change the color. If you open any image now if you want to pick a specific color from your image then select eyedropper tool and just click on that color eyedropper tool will change foreground color, if the background color is on top then eyedropper tool will select the color for the background. So eyedropper tool can be used to pick the color in Adobe Photoshop CC.