Before the Artisan chest piece was out, I did the wedding tux with the top different colours, here were the colours I used:
Carpenter: Green
Blacksmith: Orange/Red
Armorer: Light Blue
Goldsmith: Gold/Silver
Leatherworker: Brown
Weaver: Purple/Mauve/Maroon-ish
Alchemist: Dark Blue
Culinarian: Apple Green

For DoL, I didn't really do specific colourings since they got their specific chest piece before crafters, but if I were to colour them:
Miner: Brown
Botanist: Green
Fisher: Blue