A lighting device for illuminating an object, the lighting device comprising: a light source arrangement comprising multiple light sources (104, 105, 106) of different colors configured to emit a respective light beam, wherein a total light emitted by said light source arrangement produces a white light beam; a contrast producing element comprising an optically transmissive portion and a second portion being at least partly optically blocking, said contrast producing element being arranged to receive white light from said light source arrangement, and to create shadows on the object; a control unit configured to control said light source arrangement to modulate a spatial light spectral distribution of the total light emitted by said light source arrangement at said contrast producing element; and a selector for switching said lighting device between a first mode in which said control unit is inactive and said lighting device emits white light, and a second mode in which said control unit is active, wherein in the second mode said lighting device is arranged to create dynamically changing color shadows on the object, wherein the lighting device further comprises: a further light source being one of a red light source, a green light source, and a blue light source, wherein, for modulating said spatial light spectral distribution, said control unit is configured to, according to a time varying scheme, modify an intensity of said further light source and an intensity of a first light source of said light source arrangement emitting a light beam of the same color as the further light source, wherein the intensity of the light from the further light source and from the first light source are synchronized and opposite in intensity variation, or a white light source configured to emit white light, wherein, for modulating said spatial light spectral distribution, said control unit is configured to modify the intensity of the light emitted from at least one of said multiple light sources with respect to another one of said multiple light sources and with respect to the intensity of the white light. a light source arrangement comprising multiple light sources (104, 105, 106) of different colors configured to emit a respective light beam, wherein a total light emitted by said light source arrangement produces a white light beam; a contrast producing element comprising an optically transmissive portion and a second portion being at least partly optically blocking, said contrast producing element being arranged to receive white light from said light source arrangement, and to create shadows on the object; a control unit configured to control said light source arrangement to modulate a spatial light spectral distribution of the total light emitted by said light source arrangement at said contrast producing element; and a selector for switching said lighting device between a first mode in which said control unit is inactive and said lighting device emits white light, and a second mode in which said control unit is active, wherein in the second mode said lighting device is arranged to create dynamically changing color shadows on the object, wherein the lighting device further comprises: a further light source being one of a red light source, a green light source, and a blue light source, wherein, for modulating said spatial light spectral distribution, said control unit is configured to, according to a time varying scheme, modify an intensity of said further light source and an intensity of a first light source of said light source arrangement emitting a light beam of the same color as the further light source, wherein the intensity of the light from the further light source and from the first light source are synchronized and opposite in intensity variation, or a white light source configured to emit white light, wherein, for modulating said spatial light spectral distribution, said control unit is configured to modify the intensity of the light emitted from at least one of said multiple light sources with respect to another one of said multiple light sources and with respect to the intensity of the white light. a further light source being one of a red light source, a green light source, and a blue light source, wherein, for modulating said spatial light spectral distribution, said control unit is configured to, according to a time varying scheme, modify an intensity of said further light source and an intensity of a first light source of said light source arrangement emitting a light beam of the same color as the further light source, wherein the intensity of the light from the further light source and from the first light source are synchronized and opposite in intensity variation, or a white light source configured to emit white light, wherein, for modulating said spatial light spectral distribution, said control unit is configured to modify the intensity of the light emitted from at least one of said multiple light sources with respect to another one of said multiple light sources and with respect to the intensity of the white light.