At what age is it likely that an infant will show a color preference for red and yellow?

An infant is most likely to show a color preference for red and yellow around 20 weeks of age. At this stage of development, infants have matured enough both visually and cognitively to differentiate between colors more effectively. Research in developmental psychology indicates that as infants grow, their ability to perceive color sharpens, and they begin to exhibit preferences for certain colors, particularly those that are bright and contrasting, such as red and yellow.

At 20 weeks, infants not only have better visual acuity but also are influenced by factors such as their exposure to different environments and objects. They are developmentally prepared to respond emotionally and show preferences, making it a key period for color recognition and preference formation.