Does Room Color Affect Skin Temperature? No—Physiology Regulates It

Room color does not directly change skin temperature.

Skin temperature is governed by:

• Core temperature regulation (hypothalamus)
• Cutaneous blood flow (vasodilation/constriction)
• Sweating/evaporative cooling
• Environmental heat exchange: conduction, convection, radiation (from ambient temperature, not color)
• Clothing insulation
• Metabolic heat production

Color's Indirect Role

• Dark walls absorb more radiant heat → may slightly raise room temperature.
• Psychological effects (calm vs. arousal) could subtly influence autonomic tone.

But these are negligible compared to thermostat setting, clothing, and activity. Skin temperature is a physiological variable, not a chromatic one.