Pink refers to the old Vision Ward, a ward that was colored pink and provided true sight by revealing and disabling enemy wards. Although the original version was removed, its successor, the Control Ward, performs the same role and remains essential for keeping areas safe before taking major objectives or setting up coordinated Roams.
Many players still call Control Wards “pink wards” because they function similarly by denying enemy vision and securing information for their team. Well-placed pink wards help protect flanks, improve Positioning, and create safer paths around contested zones during all stages of the match.