Mexican man with his dark hair and sallow complexion, might opt for a more subdued ranchero look. He could wear a simple black button-down shirt with subtle embroidery detailing, paired with dark denim jeans and polished black cowboy boots. To add a touch of sophistication, he might accessorize with a black leather vest adorned with silver clasps. Instead of a traditional cowboy hat, he might choose a sleek black fedora with a narrow brim, adding an air of mystery to his ensemble. With his trademark intensity and enigmatic presence, Severus would command attention even in a ranchero-inspired outfit.