The absence of electricity is typically referred to as an electrical outage or power failure. While it is true that both light and electricity are part of the electromagnetic spectrum, the term "darkness" specifically describes the absence of visible light. In the case of electricity, when there is no electrical current flowing or when the power supply is interrupted, we would not specifically describe it as "darkness" since darkness pertains to the absence of visible light. However, one could metaphorically use the term "darkness" to describe the absence of electrical power in a poetic or symbolic sense, but it is not the commonly used terminology in the context of electricity.