79. Which of the following is a primary color?
Answer: B
Blue is a primary color.
Blue is one of the three primary colors in the additive color model, which also includes red and green. Primary colors cannot be created by mixing other colors together.
A) White
White is not a primary color; it is the result of combining all colors of light in the additive color model. In pigment, white is created by the absence of color.
B) Blue
Blue is a primary color because it cannot be formed by mixing other colors. It serves as a fundamental color in various color models, including RGB and CMY.
C) Black
Black is not considered a primary color; it typically represents the absence of light in the additive color model. In pigment, black can be created by mixing complementary colors, but it is not a primary hue.
D) Green
Green is not a primary color; it is a secondary color that can be created by mixing blue and yellow. While it is significant in color theory, it does not qualify as a primary color.
Conclusion
Blue is definitively the correct answer as it is one of the three primary colors used in color theory. The other options—white, black, and green—fail to meet the criteria for primary colors, as they either result from combinations or represent the absence of color. Understanding primary colors is fundamental to grasping color mixing and color theory.