Which color is included in the primary colors?

The primary colors are fundamental hues that cannot be created by mixing other colors together. In traditional color theory, the primary colors are red, blue, and yellow. In the RGB color model, which is commonly used in digital contexts, the primary colors are red, green, and blue. In both instances, blue is recognized as a primary color. It serves as a foundational color from which a wide variety of other colors can be created through mixing.

When discussing the color picking in various contexts, blue maintains its role as a primary color. For example, when mixing light, blue, along with red and green, plays a crucial role in creating various shades and colors. This understanding of blue's significance in color theory justifies its classification as a primary color, making it essential to grasp for anyone studying photography or color dynamics.