Not necessarily true. It depends on the object's optical properties. I well remember working on my parents' car in Phoenix summers. The chromed wrenches on our

Not necessarily true. It depends on the object's optical properties. I well remember working on my parents' car in Phoenix summers. The chromed wrenches on our driveway surface got to instant-blister temperatures. Tools with black surfaces were uncomfortable to pick up, but were usable. The chromed tools had a lower absorption of sunlight than the black tools, but their IR radiation coefficient was even lower. So equilibrium temperature (at which radiated energy = incident energy) was much higher for the chromed tools.