On October 19, at the 2019 edition of Host, the international fair that brings together the excellence of the Hospitality world in Milan, the Pelota space was the site of a CIAM evening with strong sensorial involvement. A unique experience, a total immersion in color and its evocations: "Revolutionary Colors" has staged an original choreography of lights that in a continuous flow of artistic contaminations have been the backdrop for high quality musical and acrobatic performances. Once again, CIAM proposes itself as a promoter of creative stimuli, a container of ideas and visions to be lived and shared to reach new horizons of design and human interaction. A special thanks to those who made this possible and to those who were spectators.