Section 21450 Of Article 3. Offenses Relating To Traffic Devices From California Vehicle Code >> Division 11. >> Chapter 2. >> Article 3.

. Whenever traffic is controlled by official traffic control signals showing different colored lights, color-lighted arrows, or color-lighted bicycle symbols, successively, one at a time, or in combination, only the colors green, yellow, and red shall be used, except for pedestrian control signals, and those lights shall indicate and apply to drivers of vehicles, operators of bicycles, and pedestrians as provided in this chapter.