Candy tangerine is an amazing color, you'll love it. When thinking about the pickguard color, maybe also consider what fretboard + neck woods you plan to use, also plastics (pickups, knobs). For example, with a dark fretboard I think mint green pickguard might be better than a dark pickguard like tortoise. It's all down to personal taste, of course. I'd play around with the
Fender mod shop tool. Start by choosing the candy tangerine body color option and then you can explore a lot of combinations with other parts of the guitar.