Which of the following is a primary color?
(A) Blue
(B) Yellow
(C) Cyan
(D) Magenta
Correct Ans: (A)
Explanation:
Blue forms one of the three primary colors in the RGB (Red, Green, Blue) color model. This model plays a critical role in visual media, especially for devices like TVs, computer monitors, and smartphones. Designers cannot create primary colors by mixing other colors. Instead, these colors serve as the base for generating all other colors through combinations.
For example, combining red and blue creates magenta, while mixing blue and green produces cyan. When you combine all three primary colors in equal intensity, they produce white light. The RGB model dominates digital applications because it matches how human eyes perceive light and color.
In contrast, yellow, cyan, and magenta belong to the CMY (Cyan, Magenta, Yellow) or CMYK color model. Printers use these as primary colors because subtractive color mixing absorbs light rather than emitting it. For instance, combining cyan and yellow creates green in the CMY model.
This distinction makes it clear why yellow, cyan, and magenta, although important, do not qualify as primary colors in the RGB model. Understanding these differences impacts design, media production, and visual communication. In summary, blue serves as a fundamental primary color in the RGB system, and it remains essential for creating diverse and vibrant visual outputs.
