"Off-white" or cream is another matter. This colour, called "ecru" in french or "ban" in irish gaelige, is the natural colour of undyed/unbleached wool. Before the days of mass production, this would have meant a significant cost saving, important and therefore popular for the poorer class, who are rarely seen in paintings of the time.
But where is the evidence that the "poorer class" actually wore un-dyed wool hose? I would be interested in hearing one of our historians tell us of the earliest evidence of cream hose.

From what I can tell, dyeing was something that even the poorest of the poor could do. They didn't all run around in cream colored coats, trousers, or anything else made of wool. They dyed them. Why would hose be any different?