checking for cracked head or bad head gasket..

I would drain the oil in a clean pan and take a closer look at it. I have seen some condensation happen in the dip stick tube and the oil be clear when it was drained. Let the oil set for a while and look at it again.
Since you haven't ran the engine much since the oil change you may be seeing the beginning of the oil and water mixing.
Here is about as close as comparision to color as I can think of. If you ever eat a rootbeer and vanilla ice cream float the oil mixed with water will look about the color of the foam.