Black and white
The point to be drawn from this is that black and dark are actually two very different types of things, the colour black is about the kind of light, whilst dark concerns the amount of light. Similarly, a triple conflation between bright, white and light has taken place. White is a colour, bright is its intensity, and light is the generic term that includes both colour and intensity.
Roland Barthes and semiotics Having elaborated the distinctions between these categories through physics, I will now use Barthes' theory of semiotics to show the linguistic processes through which the slippages, dark to black and light to white, come about. Barthes (1984) breaks language down into two levels, the linguistic and the mythological.