Different cultures have different concepts of colours. e.g. Scots Gaelic has two words for red --- ruadh, which is the red of autumn bracken, foxes, and hair; a

Different cultures have different concepts of colours. e.g. Scots Gaelic has two words for red --- ruadh, which is the red of autumn bracken, foxes, and hair; and dearg, which is the red of paint, berries, and 0xff0000. They don't consider these to be two shades of the same colour; they consider them to be two completely different colours.