[Moved to Photoshop Forum]
It seems that you need to discover the eyedropper tool! The eyedropper will allow you to select a color from your image and make them into swatches for you to work with. You can save them into your swatch palette for future use as well.
I don't looking af one single color - I need ar area to be my "Color"
With the eyedropper tool you can change the size of the sample area from a point source to much larger.
Option is eyedropper toolbar. Click on sample size dropdown window.