Hexaaqua Copper (II) ion [Cu(H2O)6]2+(aq) is blue.
Tetraamine diaqua Copper (II) ion [Cu(NH4)4(H2O)2]2+(aq) is deep blue.
Tetrachlorocuprate ion [CuCl4]2-(aq) is yellow (formed by reacting Hexaaqua Copper (II) ions with conc. HCl, it's an equilibrium rxn so it changes colour from blue to green to yellow.)
Hexaaqua Cobalt (II) ion [CO(H2O)6]2+(aq) is pink.
Tetrachlorocobaltate ion [CoCl4]2-(aq) is blue.
I don't think you need to know the colours of any other TM ions.