We always see things in colours
We colour-coded people
We distinguish tube lines with colours
We painted our walls and ceilings with colours
We are coloured.
Amazingly, there are thousands (even millions) colour scheme exist in this world but not all can be identified with our eyes.
Hadis from Wikipedia: Typically, only features of the composition of light that are detectable by humans (wavelength spectrum from 400 nm to 700 nm, roughly) are included, thereby objectively relating the psychological phenomenon of color to its physical specification. Because perception of color stems from the varying sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells.
Subhanallah. Amazing huh? Tell me how many of us had been to argument ‘pink or peach’? I had it few times. It can last for few hours but if you are persistent and tough enough, it can take days. See things dynamically. See things differently.