Jacob Christoph Le Bion, a Frankfurt printmaker, first noted the three primary colors, red, yellow, and blue. It was, however, Moses Harris who in 1766 took Le Bion’s three primary colors and arranged them in the shape of a wheel. Even today, color theory is usually taught in the form of an aesthetically pleasing color wheel. The 19th century artists had a limited palette of colors, but were masters (no pun intended!) in achieving beautiful realistic natural compositions with perfect mixes of colors. Beside hue (color family of red, orange, yellow, green, and violet), value (the measure of the relative lightness or darkness of a color) and chroma (how intense a color is) colors have other unique characteristics, such as temperature. All their talents in working with colors produced some of the most beautiful paintings that we love today.