Orange, the combination of yellow and red, is considered a secondary color on the old color wheels, everything is changing, shifting under our very feet, so let’s go see what Wikipedia has to say about this color.
The colour orange occurs between red and yellow in the visible spectrum at a wavelength of about 585 – 620 nm, and has a hue of 30° in HSV colour space. The complementary colour of orange is azure, a slightly greenish blue. Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light.
Here is a wonderful work-up on the color and it’s meanings. It is a vibrant color, denoting warmth, cheerfulness, the autumn leaves, pumpkins at Halloween and Thanksgiving, the energy of the sun, and playfulness. It symbolizes purity and innosence in the Orient, and may be the symbology of the saffron robes of the Buddhist Monks.