When more blue than red is mixed into violet, in which direction will the colour shift?

Correct answer: Blue-violet

Violet is formed by mixing red and blue pigments. If blue is used in a greater proportion, the mixture shifts toward the blue side of the colour wheel and is called blue-violet. Red-violet would require red to be dominant. Yellow-violet and green-violet do not describe the direct result of changing the red-to-blue ratio, so option B is the only suitable answer.