This limited color set is ideal for keeping color mixing simple and understanding color relationships. Ideal, artist grade oil paint for both the studio and plein air artist, offering a buttery, reliable consistency. They are guaranteed to be permanent, free from darkening, yellowing, fading and cracking. Color palette inspired by Anders Zorn : Ivory Black, Naphthol Red Medium, Yellow Ochre, Titanium White. This 4 color set includes a color mixing guide. Richeson Premium Oil Colors are a professional quality paint offering rich color intensity, brilliance of hue and chemical purity for the most discerning artist. Made in Kimberly, WI, Richeson oils are crafted with Traditional Old World pigments with brilliant, rich colors. Each pure Richeson pigment is ground to its own correct degree of fineness and then formulated individually under exacting laboratory controls. The hand-painted labels showcase the paint contained within each tube.