Its pretty obvious that you are new to the image / photo editing and stuff, and that is the reason you are looking for ways to pick colors from an image.
Suppose that you have an image in your machine, or may be you have its URL and now you wish to pick color from that image how would you do that? First answer that most of the people would give is, Use Photoshop, its pretty simple! But what if you do not have Photoshop installed on your machine?
Now you need to think of any other way which would be quicker than downloading Adobe Photoshop and picking up the color. I would be telling you about two easy to use free web services which would let you identify colors from image and I would also be sharing the old school Photoshop way.
3 Best Ways To Pick Colors From Image
THE Photoshop Method
Launch Photoshop and Open the image that you want to pick color from. From the toolbar, all you need to do is click on the Color Picker. If you are wondering how does it look, well it looks like an eyedropper. Instead of clicking the mouse button and releasing it, you need to hold the button and hover it over the image.
And while doing so, you will see that the colors are changing in the color palate and once done with it, release the mouse button and that is it. Check the color palate now as you will find the RGB code, the HTML color code and few other color identifying parameters.
Its a free web service which lets you work with images as well as image URLs. All you need to do is either click on Choose File and select your image or use the URL and click on Upload Image button.
And once done, just hover your mouse to the point (or place), where the color needs to be picked. And that is it, you will get all the required color codes including the RGB code.
Its another straight forward web tool which would let you pick color. Its pretty similar to the above one (Ginifab) in terms of operation. All you need to do is upload the image or use its URL and wait while it loads. Then hover your mouse to find the color details like HEX value, RGB value and HSV value.
These three are the pretty solid ways to find details about the any color on any image that you have or that you find on Internet.