Literature reviewed so far shows that colour has been studied by many researchers during the centuries. The impact of colour played and still plays an important role in architecture (Caivano 2006); (Fagerstrom 2008), in art, in design (Wang, Westland et al. n.d.), in interior design (Clifton-Mogg 2001); (Carrington 1954); (Billger 1999) , in lighting design (Philips 2013b), and in so many other areas. Colour is so important in people’s life, in such way that they wish to become cyborgs to see colours: Neil Harbisson is the first person in the world born colour blind and ending up “seeing” colour with the help of technology: “I have never seen colour and I do not know what colour looks like because I come from a grey scale world. But, since the age of 21, instead of seeing colour I can hear colour. The electronic eye is a colour sensor that detects the colour frequency in from tog me and sends this frequency to a CIP installed in the back of my head and I hear the colour in front of me through the bone conduction” (Harbisson 2012).
Fig.1: Neil Harbisson: world’s first cyborg (Russell 2014)
A significant body of research finds that colour has an important impact upon human’s lives, feelings, mood and emotions ((Lancaster 1996); (Harleman, Werner et al. 2007); (Jue, Kwon 2013); (Harrington, Lechner et al. 2008); (Lee, Sun 2011)). Researchers found that colours can influence mental and physical activity (Spath 2011). Colour can positively influence the physical and emotional well-being: “colour affect people, has physical and psychological effects, and may influence the behaviour and balance of emotions” (Pinheiro 2008). Moreover, colour affect emotional consumer’s decision (Je, Ham et al. 2011).