What is the usual colour of mature Lipizzaner horses?

The Lipizzan or Lipizzaner is a breed of horse closely associated with the Spanish Riding School of Vienna, Austria, where they demonstrate the haute école or "high school" movements of classical dressage, including the highly controlled, stylized jumps and other movements known as the "airs above the ground." The horses at the Spanish Riding School are trained using traditional methods that date back hundreds of years, based on the principles of classical dressage.

Aside from the rare solid-coloured horse (usually bay or black), most Lipizzans are gray. Like all gray horses, they have black skin, dark eyes, and as adult horses, a white hair coat. Gray horses, including Lipizzans, are born dark, usually bay or black, and become lighter each year as the graying process takes place, with the process being complete at between 6 and 10 years of age. Lipizzans are not actually true white horses, this is a common misconception. A white horse is born white and has unpigmented skin.