There are a few ways to colorize photos in Photoshop. One way is to use the Hue/Saturation tool. Another way is to use the Color tool. The third way is to use the Adjustment Tool. To colorize a photo in Photoshop, follow these steps:

  1. Choose the photo you want to colorize and click on it.
  2. In the Color palette, click on the black and white button and then select a color from the list of colors that appears.
  3. Click on OK to colorize the photo.