A vibrant purple hue fills the page like a canvas, painted with a cluster of three plums on a branch. These juicy plums have a lustrous dark purple color, almost shining against the lighter purple background. For the three plums, I suggest a deep purple that is a bit brighter than its natural hue. Contrastingly, the branch should be given a darker purple to make it stand out. To bring out more vibrancy and add dimension to the picture, I would use a bright pink or yellow to draw highlights and shadows around the plums and the branch. Finally, give the light purple background a deeper tone to create a beautiful backdrop.