User interfaces worldwide have adopted a modern digital toggle switch. The purpose of a toggle switch is to communicate “on” and “off” states and allow individuals to toggle between the two. Presented with 22 conventional representations of the modern digital switch, participants frequently misinterpreted the state. With no accompanying text to assist with understanding, people rely on direction (left or right) and color to guide their interpretation. Results suggest that participants rely more on color than direction to decipher whether the state is on or off. Reliance on the red-green color combination to communicate the state of the toggle switch presents a significant problem for the more than 433 million individuals worldwide who experience red-green color blindness. This study calls into question the user experience of the modern digital toggle switch and invites designers everywhere to re-envision and redesign the switch to more clearly communicate “on” or “off.”