William Rosenberg opened the first Dunkin' Donuts in Quincy ... While the pink and orange colors Dunkin' is known for are evident throughout the restaurant, diners will not be able to overlook ...

Dunkin' introduced a simpler logo -- and the chain's signature "powdered candy" pink color -- with a silhouette of a donut, formed by the name "Dunkin' Donuts," being dunked into a cup of coffee.