Colour is only one part of the much larger subject of appearance, i.e. the way things look. Apart from colour there are many factors that may influence the appearance of an object, such as opacity or transparency, gloss or colour mattness, surface texture, i.e., embossed or smooth and metallic reflection or diffusing surfaces. If these factors are removed what remains is absorption of light by the object in such a way that some colours are removed from the light and some are reflected or transmitted. The colour we see in an object however is not in the object but in our brains. Colour is our brain's perception of light that has been modified by the absorption of part of its rays.