What is the name of the purple-bordered toga worn by magistrates and boys?

The toga praetexta is the name of the purple-bordered toga worn by magistrates and freeborn boys in ancient Rome. This distinctive toga features a border of purple, which signifies its wearer's high status and dignity. The color purple was traditionally associated with nobility and power, often reserved for those in positions of authority, such as magistrates, and was also worn by young boys until they reached adulthood as a sign of their social standing.

In contrast, the toga picta, typically richly decorated and often worn by victorious generals during triumphs, serves a different ceremonial purpose. The toga pulla, a darker toga worn during periods of mourning, is not related to the celebration of high status, nor is it associated with youth. The lacerna, a type of cloak that could be worn over the toga, does not carry the same significance or function as the toga praetexta in terms of social status. Thus, the toga praetexta distinctly embodies the characteristics and cultural significance recognized in the question.