Top choice is the Primary Magenta or Bright Red. Add other shades of red to your pallet as you grow and experiment.
Cyan or Cobalt
Top choice here is Cyan/Cobalt/Phthalo. I would play with a few shades, and I would add ultramarine for brighter purples.
Top Choice is Lemon yellow. I love Cad for orange so if you see brilliant orange in the design this is a nice addition.