The zodiac sign Gemini is traditionally associated with the color yellow. Yellow is often seen as a symbol of intellect, communication, and curiosity, which are qualities commonly attributed to individuals born under the Gemini zodiac sign. Gemini, represented by the Twins, is an Air sign ruled by Mercury. The association with the color yellow reflects the sign's quick-witted, adaptable, and communicative nature. Yellow is also associated with mental agility, optimism, and a lively disposition, which resonate with the qualities of Gemini individuals.