The meaning of form is made clearer by its opposites: the contrasts. We would not recognize day as day if night did not exist. The eye accepts a line as long when a shorter line is presented, and the same line is taken as short when the line compared with it is longer.
In the same way, colors are intensified or weakened by contrast. Seven major kinds of color contrasts give colors their visual character, and constitute the fundamental resource of color design.
That is what this app is about: “Color Creation” and "The Seven Color Contrasts”.
The ways to use “The Seven Color Contrasts" are endless and offer infinite possibilities of communicating with color.