These are the colour codes and descriptions from the European Mazda EPC for 1989-91 323's (3,4 and 5-door)
DV - Bay Blue
PZ - Brilliant Black
SQ (might be SO, hard to read) - Blaze Red
UF - Clear White
1H - Steel Grey Mica
1S - Niagara Silver Mica
5D - Harbour Blue Metallic <----this is the colour of my daughter's Astina
6N - Current Blue Metallic
6S - Exceed Green Metallic
The EPC doesn't distinguish between different versions, so presumably all colours were available across the body style range. I can look up other model/years if there's any interest.