The Green, Orange and Blue represent different levels of CHAS subsidies. Cardholders with the Blue Chas Card get the most subsidies, the Orange CHAS Card cardholders get less while the Green CHAS card cardholders get the least.
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The Green, Orange and Blue represent different levels of CHAS subsidies. Cardholders with the Blue Chas Card get the most subsidies, the Orange CHAS Card cardholders get less while the Green CHAS card cardholders get the least.