Which of the following are considered primary colors?

The correct answer identifies blue, red, and yellow as the primary colors in traditional color theory, particularly in the context of art and design. These colors are considered primary because they cannot be created by mixing other colors together. Instead, they serve as the foundational hues from which a wide variety of other colors can be produced through mixing. For instance, when blue and yellow are mixed, they create green; red and yellow make orange; and red and blue produce purple. This blending of primary colors to create secondary colors is a key principle in various design fields, including interior design.

The other options present different sets of colors. The first option lists red, green, and blue, which are primary colors in additive color theory used in light and digital screens. The third option includes cyan, magenta, and yellow, which are primary colors in subtractive color theory commonly used in color printing. The fourth option presents orange, purple, and green, which are all secondary colors formed by mixing the primary colors. Understanding these distinctions is crucial for anyone involved in interior design, as color theory plays an essential role in creating aesthetically pleasing environments.