The science and art of color theory is divided by a wheel or chart into three main categories: primary, secondary and tertiary. Color is something we perceive through a combination of wavelengths ...

The opponent process theory suggests that the way humans perceive colors is controlled by three opposing systems. We need four unique colors to characterize perception of color: blue, yellow, red, and ...

Jerry Cao is a UX content strategist at UXPin — the wireframing and prototyping app. To learn more about how to create visually digestible interfaces, download the free e-book Web UI Design for the ...