Which major technology company deliberately changed its logo to blue because research showed this color significantly increased brand trust and recognition?

Color psychology has played a pivotal role in some of the most significant branding discoveries of the modern era. Major corporations invest millions in researching how specific colors influence consumer behavior and brand recognition. This poll tests your knowledge about a groundbreaking color-related brand decision that transformed a company's market position and became a case study in business schools worldwide.

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Facebook (changed from its original red logo in 2005)
IBM (switched from a multi-colored striped logo to solid blue in 1972)
Intel (transformed from a green circuit-themed logo to blue in 1991)
PayPal (abandoned its original yellow and black scheme for blue in 2007)