Kaplan Nursing Entrance Practice Exam

Which color is NOT considered a primary color of light?

1. Red

2. Green

3. Blue

4. Yellow

The correct answer is: Yellow

In the context of light, there are three primary colors: red, green, and blue. These colors are fundamental because they cannot be created by mixing other colors of light, and they can combine in various ways to produce a broad spectrum of colors. Yellow, on the other hand, is not a primary color of light. It can be created by combining red and green light, which positions it as a secondary color rather than a primary one. This distinction is rooted in the additive color model, commonly used in contexts such as digital displays and lighting, where different colors of light combine to form others. Understanding the primary colors of light is essential in fields like photography, television, and design, where manipulating color effectively can impact visual outcomes.