In my personal view… regardless what is your car’s paint colour, as long as you wash your car every week it will look great in the long run.

Just want to share my car care regimen

Washing
1) Wash my car every weekend with wash & wax type car shampoo
2) After dying-up the car, will apply a layer of meguiars quick wax or quick detailer [alternating between the 2 on each week]

Waxing (every 6-8 weeks)
1) Wash my car using a good car shampoo
2) Clay my car paint surface
3) Polish * optional depends on the car paint condition [usually I only polish my car once a year]
4) Wax the car using a good quality wax