| Designation | ISBT name | Haplotype | Phenotype | Cluster | Alterations | First mention | Definitive publication |
| CO(A168T) | Colton | main cluster | 502G>A (A168T) | 2009 | |||
| CO*01N.03 | CO*01N.03 | Colton | Co(a-) Co(b-) Co:-3 | main cluster | 576C>A (N192K) | 1999 | 1999 |
| CO*M.01 | CO*M.01 | Colton | Co3+ weak Co(a-) Co(b-) | main cluster | 113C>T (P38L) | 1994 | 1994 |
| CO*01N.05 | CO*01N.05 | Colton | Co(a-) Co(b-) | main cluster | 112C>T (P38S) | 2009 | 2010 |
| CO(Q47R) | CO*01.-04 | Colton | Co:-4 Co(a-) Co(b-) Co3+ | main cluster | 140A>G (Q47R) | 2002 | 2010 |
| CO(V50M) | Colton | main cluster | c.148G>A (Val50Met) | 2015 | |||
| CO*02 | CO*02 CO*B | Colton | Co(b+) Co(a-) Co3+ | main cluster | 134C>T (A45V) | 1994 | 1994 |
| Co(A45T) | Colton | Co(b+) Co(a-) | main Cluster | 133G>A (A45T) | 2010 | 2010 |