Out of Holden influenced Joanne Aiden's 12 hue color wheel hiddens color circle is based on divisions from an equilateral triangle, where the pigment primaries are located. The secondary hues of green, orange and violet are located within this hexagon. All the other intermediates are located between the points of the range and the hexagon is placed the yellow at the top of the circle because it is broadest. It is visually closest to what the color in the circle equal distance because the mixing of equal portions of two adjacent hues creates the intermediate hues