What is the main purpose of using herbs and spices in cooking?

The main purpose of using herbs and spices in cooking is to enhance flavor. Herbs and spices are staples in culinary practices because they can transform a dish, elevating basic ingredients into an extraordinary meal. They contribute various tastes, aromas, and characteristics that can complement or contrast with the main components of a recipe, creating a more complex and satisfying flavor profile.

While adding color can be a benefit of using certain herbs and spices, this is not their primary role. Similarly, increasing cooking time or improving texture are not directly associated with the use of herbs and spices. These culinary elements are primarily valued for their ability to improve taste and fragrance, making the correct answer centered around flavor enhancement.