You need to see the colors IRL to really know. For example, bougainvillier in taurillon is different from bougainvillier in epsom (brighter and more vermillion). Rubis is not a bright color per se. It is a muted raspberry which, in some skins, is just a couple of shades lighter than rouge H. To compare bougainvillier with a brighter red, you might want to consider rouge vif or rouge garrance.