Where do I find the Regal Purple Dye thanks.

The only place i know is the Clothing Trader in Fairfax Gardens. However, the traders you see there at any given point are random, so he might not be there when you decide to go. If not, simply sleep for 7 days then go back and check again. Keep doing this until he shows up. It only took me a couple tries. Also, even if you see him there, its not a guarantee he will have the purple dye. If not, buy whatever dye he does have then repeat the sleeping method again. Keep doing this until he has the purple dye in stock, it shouldnt take long.

Alright so i guess i lied, as i just discovered another place to get the Regal Purple Dye. If you have the "See the Future" DLC, go into the Snowglobe, and head to the village. In one of the houses, you will find a chest upstairs which has the Regal Purple Dye inside. I just found this now while playing, and hopefully the treasure is the same for everyone. So if you are having trouble with getting the clothing trader to appear in Fairfax Gardens, give this a shot.