On the second day of working on the Watercolor Workshop, (by Shasha Prood), we’re making swatches of oranges and reds.
I have one true orange, Cadmium Orange, but I think these other two colors, Burnt Sienna and Cadmium Red Pale, fall into this category, also.
For reds, I have a primary color, Cadmium Red Deep, and another that is a cool red, Alizarin Crimson. Indian Red is a very earthy red and (again) Cadmium Red Pale is a very orangy red.