Applying Color to an Image

This might be an odd question. I am new to Photoshop, so please bear with me. My goal - to replicate what Home Depot has in their stores. Matching paint swatches.

I have a picture of the room. I also took a picture of the swatch. How do I apply the color that's on the swatch to a wall that's in the picture of the room?

Thanks in advance for all insight.

ap

Adem,

Scan the swatch and if your color configurations are right it'll look very much the same color onscreen as the swatch. Now use the eye dropper on this swatch scanned image and you can apply that to your room color.

Bob