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 ...

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 ...

Discover how to deploy color theory effectively in a professional design or fine art setting. Receive one-on-one guidance in learning to mix colors and combine colors to achieve a variety of visual ...

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 ...

Marketers across all professions know they have a tiny window of time — often a fraction of a second — to snag their audience's attention. Just think of all the ads you encounter daily, most of which ...

Two folds from an Astrolin Color Card pamphlet by Établissement Georget Fils Peintures Laquées et Vernis, Chantenay-Lès-Nantes (c. 1906), 6 3/10 x 3 3/4 inches (image courtesy Bibliothèque Forney, ...