Chestnut Cable Beanie Hat

Another new design in the shop.  I decided I didn't have enough baby boys hats for sale so decided to knit up some beanies.  This one has one cable down the front and is knitted in a wool mix marl yarn with subtle specks of red, blue and yellow.  I am trying to choose a few more colours for this design as I think it will work well for both day to day babywear but also make a cute photography prop.

Which colours do you think would work well?  I am trying to choose some more subtle colours for this design and steer away from the usual blues!