Perhaps this plain black skirt and dark blue tunic would serve.

In her dark blue tunic and white trousers, she looked professional.

He wore a dark green tunic over his riding clothes.

He bit on a coin then put it and the rest away in his dark tunic.

He saw bright blood stain the dark green tunic before the man fell.

This was just an ordinary man, wearing a dark tunic.

She was gorgeous, in a dark red tunic and black tights.

He dropped his bag in the corner, under the window, and changed into another clean dark tunic; then headed for the door.

The foremost troops were almost at the river; they wore dark green tunics.

First down was a man in dark tunic and trousers over soft boots.