The world blue finds its origin in old Germanic languages meaning shimmering and lustrous. With a wavelength of between 450 and 495 nanometres, all the definitions and technicalities fall short of the amazing thing that is blue. From blue eyes to blue bruises, from blue jeans to blue ink – it’s part and parcel of how we experience and interact with the world. But it is all that it seems? Had a hint of red or yellow and it totally loses its cool. There’s no blue food. For all the strength and dignity that it represents, blue also seems to have a fragility about it. When your skin turns blue, that’s not a good thing. Is blue over used? Let’s see what our amazing contributors have to say about BLUE.