Orange Color Animals

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. It is numerically halfway between red and yellow in a gamma-compressed RGB colour space, the expression of which is the RGB colour wheel. The complementary colour of orange is blue; however, certain shades can be considered more complimentary to green based on reactions by eye cones. Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light.
Etymology
The color orange is named after the orange fruit, after the appearance of the ripe fruit. Before this word was introduced to the English-speaking world, the colour was referred to as ġeolurēad (yellow-red).