Ecology of Colour: From the supremacy of green colour to new scenario between colour and ecology

Colour in sustainability is green. The green colours is still able to show ethical, natural, healthy and well-being orientations in areas such as the biological agroindustrial sector whose ‘image’ is still related to the green colour, associated to authenticity and nature. In such a way the chlorophyll green is preferred to the wheat ear yellow, although the message is strengthened with symbols showing quality certifications (ISO, CE, etc.) or with category labels (DOP, DCO, DOPG, etc.). Green is always the colour of renewable energies, zero kilometre food, holidays, innovation and smart technologies. Therefore, it is true that we can represent ecology with infinite colour scales, but very often we still lack the thought categories allowing us to multiply it..