Available for free on Blender Extensions

This Blender addon simplifies the process of randomizing object colors.
It addresses the issue of adjacent objects having the same or very similar colors, ensuring a vibrant variety. With a single button press, the addon randomizes the color of an object, allowing you to manually select the perfect color by repeatedly pressing the button. It adds a prefix to object names to ensure each color is unique and allows you to easily remove this prefix once your work is complete.