Which color was used for Penguin's original fiction titles in their revolutionary color-coding system that began in 1935?

Penguin Books revolutionized publishing in 1935 with their affordable, color-coded paperbacks that made quality literature accessible to the masses. Their iconic design approach not only transformed the publishing industry but created one of the most recognizable visual identities in literary retail history. Test your knowledge about this landmark intersection of product design, brand identity, and literature!

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