Hi,
Difficult to know when the pic was taken but he isn't wearing any of the insignia that would denote early membership (
Potsdam badge, Tradition stripe, Type 1 or 2 DJ membership badge) so I would date the pic to perhaps mid-1933 to 1934.
These runes are interesting because there are originals that don't seem to match any known criteria but the early (pre-Oberbann) DJ rune patches are noted in one source
1 as being in the colour of the associated SA-Gruppe so with this boy being from HJ
Gebiet Nordsee we would expect to see a dark-brown patch. Once freed from direct control by the SA, the HJ began to reorganise and the majority colour within
HJ-Gruppe Nord was black/white until the the major structural reorganisation of July 1933. So, we have two colour possibilities for the rune: brown or black. However, this is a later photo so we would have to assume that he is either wearing an old rune patch in one of those colours or that he is wearing a non-standard,
Oberbann rune patch.
All of the Nordsee DJ Jungbanne had been organised into Oberbann 1, 2 and 3 by the beginning of 1934 which gives us three colour options: red, yellow and green. Due to the rapid influx of new members around this time it may have been necessary to raise an Oberbann 4 (blue) and I'll check that now but the Oberbann system was abolished beginning in April 1934 (completed by 1st of Jan 1935) so I would think that we can really only consider red, yellow and green as options.
On balance though, I would think that the patch in the photo is a pre-July 1933 version in black with white rune.
1NSDAP Aufbau und Abzeichen 1933