Wear something that helps casting understand the character without turning the audition into a costume presentation. The clothes should support the story, fit properly, and let your face and behaviour remain the focus.
Use the role and circumstances as your guide. A lawyer, exhausted parent, nightclub manager, and paramedic do not need literal uniforms, but they do suggest different shape, colour, and level of formality. Avoid tiny patterns that fight with the camera, loud jewellery, visible logos, or anything you keep adjusting between takes. Check the full frame before recording. If a wardrobe request is included, follow it. The practical test is simple: does this choice make the role easier to imagine, or does it ask the viewer to spend attention on your outfit? Suggest the world. Then do the scene.