Stool colors can range from pale, black, green, red, yellow, or brown. Each of these colors can signify change a change in diet, disease, or condition. This resource should only be used as a guide when estimating the color of your loved one or client’s stool. It is important to remember that you are not responsible for diagnosing your loved one’s or client’s condition. However, it is useful to know what to report to the nurse or doctor.