There are so many ways to go depending on the style and other colors in the room. You can also consider putting a throw over the back of the chair and down the front with the pillow on top of that to give a great variety. Put the term " throw over chair" into the search area to see what I mean. In the mean time, see how these would look. Another great idea, is to take the existing pillow with you to some local stores that carry pillows. This way you can pick a pillow that will coordinate with the chair.