Ever been in a situation where you need to find a particular color in your icon/ image and apply it as a background for the entire page?
I’ve used http://imagecolorpicker.com/ to get the HEX/ RGB value of an image. If you don’t have PhotoShop/ Gimp or any other image editing software, this is a great resource.
I recently started using a tool called ColorPic and find it extremely useful to find the hex code of a particular image without much trouble. It is straight forward and very easy to use.