It's from the HJ organisation book from 1934. Bakers books have great scans of these illustrations with an English translation as well to help us that are not able to speak German.
It all depends on the HJ district Darin. The Oberbann colours were not represented equally in all districts (Gebiete) because some of them were smaller than others. The smaller ones would not have used blue, black or white for example.
I will probably add a list of the Oberbanne to my article at some point but in the meantime I'm more than happy to help with individual queries as I have in the past so just give me a shout.