Which color has been statistically shown to increase sales of literary fiction books by approximately 17% when used as the dominant cover color in bookstore displays?

In the publishing industry, book cover designs are meticulously crafted to attract potential readers. Color psychology plays a crucial role in this process, with publishers strategically selecting colors that evoke specific emotions and genre associations. This trivia question explores how major publishing houses have used color data analytics to boost sales of literary works in physical bookstores.

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Deep blue (associated with intelligence and depth)
Vibrant orange (associated with creativity and enthusiasm)
Muted green (associated with growth and balance)
Contrasting black and white (associated with sophistication and clarity)