Which secondary colour may be suitable for drawing grapes?

Correct answer: Violet

Violet is a suitable secondary colour for depicting many varieties of grapes because grape skins are often shown in purple or violet tones. On the colour wheel, violet is produced by mixing red and blue. The artist can add white for highlights or a little black for shadows, depending on the light. Yellow, red, and blue are primary colours, not secondary colours, so violet is the best answer.