Red Oceans are all the industries in existence today – the known market space. In the red oceans, industry boundaries are defined and accepted, and the competitive rules of the game are known. Here companies try to outperform their rivals to grab a greater share of product or service demand. As the market space gets crowded, prospects for profits and growth are reduced. Products become commodities or niche, and cutthroat competition turns the ocean bloody. Hence, the term red oceans

Blue oceans, in contrast, denote all the industries not in existence today – the unknown market space, untainted by competition. In blue oceans, demand is created rather than fought over. There is ample opportunity for growth that is both profitable and rapid. In blue oceans, competition is irrelevant because the rules of the game are waiting to be set. Blue ocean is an analogy to describe the wider, deeper potential of market space that is not yet explored

Cornerstone of Blue Ocean Strategy: 'Value Innovation'
A blue ocean is created when a company achieves value innovation that creates value simultaneously for both the buyer and the company. The innovation (in product, service, or delivery) must raise and create value for the market, while simultaneously reducing or eliminating features or services that are less valued by the current or future market
Blue Ocean vs. Porter’s 5 forces model
The Porter’s Five Forces is focusing more on what makes an organization competitive in existing red markets and it is concerned with the micro-environmental factors affecting businesses within the same industry. Factors such as competitive rivalry, new entrants, buyer power, supplier power, and threat of substitution are factors which when conquered would not necessarily make you as a market leader

Porter’s model is based on the insight that a corporate strategy should meet the