Of course. The word "purple" originally comes from the old English word "púrle", which means purple. Later, with the evolution of language, the word was gradually used to refer to a color, that is, deep purple. However, in the west, people still use "purple" to refer to the purple fruit of grapes. For example, in some local dialects, people may call grapes "purplegrapes" or use "purple" instead of "violet" when describing a certain color. To sum up, purple can represent grapes.