Dental OSCE (Objective Structured Clinical Examination) Practice Exam

Which of the following colors has less chroma than red?

1. Blue

2. Pink

3. Yellow

4. Green

The correct answer is: Pink

The correct answer is pink, as it has less chroma than red. Chroma refers to the purity or intensity of a color; it indicates how vibrant or saturated a color is. Red is a primary color with high chroma, representing a pure and vivid form of that hue. Pink is essentially a desaturated version of red, created by the addition of white, which lightens the color and decreases its intensity. This dilution reduces its chroma, making pink a softer and less vibrant color compared to red. Other colors like blue, yellow, and green do not naturally derive from red or have a comparative chroma relationship in this context. Blue and green are distinct hues altogether and are positioned differently in the color spectrum, while yellow is also a primary color, albeit different from red and maintaining its own chroma level. Therefore, among the choices, pink clearly has less chroma due to its lighter and less intense appearance than red.