Which colour group is more likely to create a calm and cool effect?

Correct answer: Blue, green, purple

The correct answer is B: blue, green, and purple are generally cool colours and are more likely to create a calm or cool effect. Artists use colour associations to influence the mood of a composition. Blue may suggest sky or water, green may suggest foliage and nature, and purple can contribute a cool or quiet feeling, especially when it leans toward blue. A is incorrect because red, yellow, and orange are warm colours and commonly suggest heat, brightness, or energy. C is also mainly a warm group because golden, red, and yellow are associated with sunlight and warmth. D contains orange and red, so it generally feels warm and energetic even though black can make the effect darker. B is therefore the best answer. This is a tendency, not an unbreakable rule: exact mood also depends on brightness, saturation, surrounding colours, and composition. For an exam, remember “blue-green-purple for cool; red-yellow-orange for warm.”