It depends on the hospital here, but just looking though the dress code for my local major public teaching hospital and basically every role seems to have a different colour coded uniform, ranging from scrubs to tunic with different trims and so on for quick identification.
Huge range of colours: white, blue, purple, pink, lilac, orange, wine, green, yellow … some departments, particularly anything to do with kids, wear cartoon prints and stuff.
Doctors don’t necessarily wear white coats but are usually either in scrubs or just smart casual type clothes if they’re not in an area that needs PPE. Same seems to apply to a lot of other non medical consultants like dieticians, psychologists, etc etc but hands on roles like physical therapy, radiology, radiotherapy etc all seem to have uniforms.
But the days of white coats and white tunics seem to be long gone in most places.
Their specification for uniforms was that they must be capable of being washed at 60°C (140°F) and be able to handle normal biological detergents - special care fabrics are not used.
Other thing they note is that ties or neck ware of any type are banned for hygiene and safety reasons and most jewellery too.