My watercolor palette went through a major overhaul about a year ago, with more lively colors that I continue to love using. If you're out to "sketch the energy," these choices are hard to beat. Frankly, most of the painting I do is accomplished with three--Naples Yellow, Prussian Blue and Alizarin Crimson, I don't think I could live without my beloved Cobalt Teal Blue and Mayan Orange. The others do come in handy, so I'm posting them all here.
You'll note this selection is heavy on Daniel Smith colors; I find them much more vibrant than some previous choices, and I haven't had the issue of them being runny in the palette that some others have written about. Some of my choices have been informed, with gratitude, by Paul Wang and Alvaro Castagnet. I hope you find this helpful:
Daniel Smith: Cobalt Teal Blue, Ultramarine, Viridian, Deep Scarlet, Azo Yellow, Cobalt Blue, Deep Sap Green, Mayan Orange, Hansa Yellow Deep, Burnt Umber, Burnt Sienna Light, Neutral Tint and Carbazole Violet.
Winsor and Newton: Naples Yellow, Prussian Blue, Alizarin Crimson.
I keep these in a metal travel "Paintbox" made in the UK by Robert Young; it's proven to be a top shelf, road-worthy piece! I also carry a very nice set of Escoda travel brushes in a nifty leather wallet. This basic setup is ideal for my current ways of working.
That's all kids...keep dreaming...keep drawing!