The urban shape is understood as the sensitive expression of an idea of city. The emergent aspects, at present involved in the development of technologies of information and communication, have modified the idea of city and, consequently, its shape, which expresses in its appearance the different aspects of this change. This is regarding the physical component, which is strongly engaged with its chromatic expression. As regards the human factor, the construction of the image is considered as a determining aspect of the process of knowledge, which is at present immersed in other dimensions of time and space where speed, simultaneity and alteration constitute parameters of new mechanisms of syntax and construction of the urban image. The challenge consists in interpreting how the urban shape expresses that idea of city and shows the changes in its appearance, in knowing how man builds his image considering this computerized era as well as discovering which the role of color is in this discussion.