New Soccer-mom concerns

The hardest part of being a soccer-mom is choosing the right combination of socks and shoes that go with my son’s uniform color.  I thought choosing a nice pair of soccer shoes was hard — getting the socks is harder!  Aside from hard-to-find sock sizes for a 4-yr old, the colors are really hard to put together.  We saw a blue pair and a red pair but no white or black (none in the right size actually).  So which to combine with an orange uniform?!?