A pair of triads...
The Ultimate Sketching Palette is a compact, travel-ready watercolor palette, designed by Jane Blundell around two useful triads (each with a red, yellow, and blue). The primary triad of Hansa Yellow Medium, Quinacridone Rose, and Ultramarine Blue provides bold, bright colors, while the earth triad of Goethite, Indian Red, and Cerulean Blue Chromium mixes a range of subtle textured hues.
...and a useful collection of colors
Rounding out the palette is a set of colors, perfect for sketching on the go. Quinacridone Gold is a warm yellow, Burnt Sienna is a ready-to-go brown, and Perylene and Sap Greens are excellent for foliage. Finally, Jane’s Grey is useful for dark shadows, and Buff Titanium brings subtle color to sand, marble, and stones.