In this video, we learn how to change the color of dark hair in PhotoShop. First you will want to open up PhotoShop and open up the picture you want to change, zooming in so you can see the hair up close. Next, open up the mask tool, then use the brush to color the hair. This will only highlight the hair to change the color in the future. Use different sized brushes when you need to. Once you've done this, click on the mask tool to create the selection. Now, select the marquee tool and click the right key of the mouse. Then, select inverse selects from the menu. Now you can go on to change the colors as you like! Save when you are finished and you will have a new color hair in no time.