Sort items with number and color

Hello, someone will have some idea of ​​how to assign a random color to a group of elements, but in turn controlling the amount of each color (red = 30%, green = 30%, blue = 60%, say) and so same list the items and make a list that tells me the number and color of each. Something similar is possible in 3ds max with modifier MaterialByElement but intenció is sort each element in a list with your number and color, and if possible in rhino or grasshopper.