We show the spectrum of 2008 YB₃ obtained with X-shooter, and some other primitive minor bodies, for comparison: a red Centaur, Pholus (Barucci et al. 2011; Fornasier et al. 2009; Fulchignoni et al. 2008; Perna et al. 2010); a grey Centaur, Bienor (Alvarez-Candal et al. 2008; DeMeo et al. 2009; Guilbert et al. 2009); the average spectrum of the red and grey Trojans (Emery et al. 2011); the spectrum of 2004 TU₁₂, a red comet nuclei (Campins et al. 2006). The retrograde Centaur is very similar but redder than all the other primitive bodies, with the exception of Pholus, where ultra-red matter and ices have been detected.