A visible light projection device includes a detecting unit that detects a first region emitting non-visible light, a projecting unit that performs projection using visible light onto a second region including the detected first region, and a control unit that controls the projecting unit to perform projection with a color selected by an operator. When a first color is selected as a color of visible light projected by the projecting unit onto a region other than the first region, the control unit informs the operator of first options to allow a color of visible light projected onto the first region to be selected from the first options. When a second color different from the first color is selected, the control unit informs the operator of second options to allow a color of visible light projected onto the first region to be selectable from the second options.
