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 within the second region, the control unit informs the operator of first options in such a way as to allow a color of visible light projected onto the first region by the projecting unit to be selected from the first options. When a second color different from the first color is selected as a color of visible light projected by the projecting unit onto a region other than the first region within the second region, the control unit informs the operator of second options different from a combination of candidates included in the first options in such a way as to allow a color of visible light projected onto the first region by the projecting unit to be selectable from the second options.
