I Love this feature in Photoshop! The eyedropper tool allows you to suck up the color in one spot of a pattern or picture. This enables you to find the perfect color to match whatever it is that you are working with!
So, I want to match my white paper to my floral paper so I can layer it. I start by selecting the eyedropper tool.
I am going to match this to the lime green color in the flower. I take my eyedropper tool and click on the lime green color. Can you see how it has put the exact color in my color box??? So cool.
Next, I will use my paintbucket tool and just click on the white paper.
There you have it! A perfect match. 