Ok, here's a little more specific question. Would this be a valid combination?
Pink Slime, Green Slime, Golden Slime, Pearl Slime, Mighty Slime
The reason I ask is because Mighty and Pearl look so close alike that I can't tell if they're different colors. (I have poor color differentiation on hues... barely able to tell Violet and Indigo apart.) They are all 5 slimes with the same design, but all 5 are different first names and 4 DISTINCT different colors (maybe 5 if Mighty is indeed a dif color then Pearl).