The color that does not absorb heat is white.
Colors are determined by the wavelengths of light they reflect or absorb. When an object appears white, it means it reflects all wavelengths of light across the visible spectrum, including the wavelengths associated with heat (infrared radiation). As a result, white objects reflect a significant amount of light and heat, which helps to keep them cooler compared to objects that absorb more light and heat.
In contrast, objects that appear darker, such as black, absorb more light across the visible spectrum, including heat. They absorb a greater amount of energy and convert it into heat, which is why dark-colored objects tend to become hotter when exposed to sunlight or other sources of radiant energy.
It's worth noting that the concept of heat absorption by colors can vary depending on the specific material and its surface properties. In general, however, white objects are known to reflect more heat compared to darker-colored objects.