  It is shown that colour can only be defined on gauge invariant states. Since
the ability to associate colour with constituent quarks is an integral part of
the constituent quark model, this means that, if we want to extract constituent
quarks from QCD, we need to dress Lagrangian quarks with gluons so that the
result is gauge invariant. We further prove that gauge fixings can be used to
construct such dressings. Gauge invariant dressed quark states are presented
and a direct approach to the interquark potential is discussed. Some further
aspects of dressing quarks are briefly discussed.
