Blue Denim Skirt for Women. Women's blue denim skirts are adaptable and informal pieces constructed of sturdy denim that are usually dyed in a traditional shade of blue. It comes in a range of lengths, including maxi, midi, and mini, and frequently has jean-inspired details like pockets and front buttons. This skirt is a favorite for carefree style since it has a classic, carefree appeal. It goes nicely with many different types of tops and shoes, making it appropriate for both informal events and daily wear.