One use for a custom swatch collection is to restrict yourself to specific collection of colors. If you have an image with the colors you want to use, you can use the eyedropper tool to select colors from your image, then add them to the swatch palette and make a custom swatch collection one color at a time. If that sounds time consuming to you, you'll be glad to know that you can create a custom swatch collection from the colors in an existing image. This exercise will show you how.
We'll use this plaid pastel pattern as the basis for our swatch collection. Save this image to your computer and open it in Photoshop Elements. Or, right click on the image here and choose copy. Then go to Photoshop Elements and choose File > New> Image from Clipboard to open the image directly in Photoshop Elements.


