The term 'palette pigment' refers to the colors used in painting and drawing. The two crossword solutions for this term are ocher and OCHRE, both of which are earthy shades of yellow, orange, or brown. Ocher is a natural clay earth pigment containing iron oxide, while OCHRE is a yellow or reddish-brown color derived from clay or sand. Both ocher and OCHRE are commonly used in art and have been used since prehistoric times.