Neutral colors have no distinctive quality, characteristics, or type. They can be achromatic, with no hue at all, like black, white and greys or they can be dull colors that harmonize with most other colours, such as tan, brown, or navy. You can check out more images in neutrals by visiting my Neutral Pinboard.
Green is a color intermediate in the spectrum between yellow and blue, an effect of light with a wavelength between 500 and 570 nanometers. It is often found in nature as the color of most grasses and leaves while growing, of some fruits while ripening, and of the sea. For more green, visit my Green Pinboard.
Orange is a color between yellow and red in the color spectrum, an effect of light with a wavelength between 590 and 610 nanometers. You can see more orange pictures in my Orange Pinboard.