The main colors are sapphire blue, lake blue, pink and white.
The style should be simple, not too many tricks.
Pants; Straight casual, color khaki, beige, pure black, soft cloth.
Accessories; Simple, wear a hat or sunglasses appropriately .. It is not recommended to wear a tie or earrings.
I recommend you to go to Taobao 19 store. If you are about 20 years old, you should have something you like.
Finally, I hope you don't blindly follow the trend .. It's most important for you to be comfortable.