The color most commonly associated with Valentine’s Day is red.
Red is the holiday’s dominant traditional color because it has long been linked with love, passion, desire, and the heart. Those associations fit the modern celebration, which centers on romantic affection and commonly features red hearts, roses, cards, clothing, and decorations.
The color is not a required religious feature of Saint Valentine’s feast. Rather, it developed through the holiday’s later cultural and commercial traditions. Red roses became especially prominent because the rose was associated with love in classical and European symbolism, while the heart shape became a widely recognized emblem of affection.
Pink and white are also strongly associated with the occasion, so “red” describes the most common convention rather than an exclusive rule. Pink often suggests tenderness or romantic sweetness, and white may appear in flowers, cards, and decorations. Purple can also occur in some Valentine’s designs. The key distinction is between a customary visual symbol and an official color: Valentine’s Day has no universal mandated color scheme.