Scott discusses the range of colors he considers, their general characteristics and uses several photos to choose a specific palette for each painting.
After experimenting with a limited palette, you might find then that you know what other colors you need to add and why you need to add them.
My foundational gouache palette includes thed following colors:
Some of the additional colors I've experimented with and might add to my palette include (all from Winsor & Newton):
To understand the character of the color, making a color card that has the color at its full strength and up to five tints (made with white) can be useful.
For each painting subject, a limited palette can be selected with intention. My limited palette will:
Using a limited palette will make the introduction of additional colors more significant.