yea no one cares what your socks look like as long as they're white when you have your shoes on.
as an added bonus, write your name on them somewhere. i used the provided stencil kit to mark the arch with my name as a practice for marking the RLP stuff. actually i still use these same socks with my flight boots
i found good running calf socks at an actual running store, so check to see if you have one locally.
And to add on to that...Do not bring ankle socks! Make sure they are high enough to put your gouge pack in.