experiment.2.c.9.5 fraternal twins In this case, the fraternal twins are as opposites as opposites can be. Red and green are complementary colors. This means they are opposite on the color wheel and as different as can be. Complementary colors have nothing in common and are the most intense in contrast. Green is a cool color. It is calming and the color of spring and thus the color of rebirth. Red on the other hand is hot, psychologically agitating and induces hunger more than all the other colors. The red is one of the three primaries. The green is a secondary, the combination of the other two primaries, blue and yellow. It is a color of calm reason, collected and logical while the red is a color of hot passion and being unruly. Red is a color symbolizing woman and green symbolizing man, but these temperaments are exhibited crossing into both sexes. Image size: 21" x 16"