I use a Yellow Ochre Light, Pthalo Blue, Titanium White, Zinc White, Transparent Oxide Red (for blocking), Pthalo Green and Perylene Red :)

Although, you can just use Richard Schmid's palette, replace all the toxic junk with modern pigments and you're good to go. The thing is to stick with the palette forever for many decades so that your paintings have a cohesive harmony.

I notice that the Windsor & Newton watercolour series has nothing called Perylene Red, but it has a nice looking colour named Perylene Maroon that seems similar.

Thanks. Only after you mentioned did I lookup Perylene Red, looks great.