Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
However, if one assumes that formal wear in this context means business wear, then by all means a blue shirt with a white collar can be worn. So long as the blue is conservative and the outfit is worn with a jacket and tie, blue shirts with white collars are appropriate in even the most formal of business occasions.
