Wikipedia definition: The green economy is defined as an economy that aims at reducing environmental risks and ecological scarcities, and that aims for sustainable development without degrading the environment. It is closely related with ecological economics, but has a more politically applied focus. The 2011 UNEP Green Economy Report argues "that to be green, an economy must not only be efficient, but also fair. Fairness implies recognising global and country level equity dimensions, particularly in assuring a just transition to an economy that is low-carbon, resource efficient, and socially inclusive." 
Wikipedia definition: The purple economy is that part of the economy which contributes to sustainable development by promoting the cultural potential of goods and services.
“The purple economy refers to taking account of cultural aspects in economics. It designates an economy that adapts to the human diversity in globalization and that relies on the cultural dimension to give value to goods and services.” These two trends, one vertical and one horizontal, feed one another. In fact the growth in the cultural component attached to products is linked to each territory’s cultural vitality.
The term “purple economy” originated in France in 2011 in Le Monde, a daily French evening newspaper that is widely respected throughout the world.
The first international purple economy forum was held on 21/10/2011. The organizers stated that, "‘Purple economy’ is far more than laying claim to a new term. It is about looking beyond the economic value of cultural outputs to encompass the cultural dimension of any asset or service. Purple economy is part of a wider ethical approach. It contributes to a richer and more diverse cultural environment. Such wealth and diversity are decidedly drivers for progress." For more information (in French) go to: http://www.economie-mauve.org/
Cultural Footprint: A Marker of the Purple Economy “The dynamic, healthy connection between the economy and culture encourages a view of culturalization as a field of opportunity and responsibility. Along with the green economy (which includes the ecological footprint) and the social economy (which includes the social footprint), the purple economy, with its cultural footprint, constitutes the third pillar of the burgeoning transition beyond purely quantitative growth.” (6)
A link is made between the cultural component and well-being.
Examples of purple professions include humanities and social science teachers/researchers; town planners and tourism professions.
Complementarity with the Green Economy “The example of using local original components shows the complementarity that is possible between the green and purple economies. There is indeed a direct link between, for example: - regional agricultural products and the maintenance of biodiversity; - traditional local materials and eco-construction.
“The logic of short supply chains generally responds to issues both green and purple.”(7)