Which color dominates the branding of Duolingo, and is psychologically linked to the cognitive effects they want to achieve in language learning?

Color psychology plays a crucial role in language learning apps and linguistics products. Different colors can evoke specific emotions and cognitive responses that affect how users engage with language learning tools. This trivia tests your knowledge about how major linguistics and language learning brands strategically use color in their product design and branding to enhance user experience and learning outcomes.

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Green (associated with growth, progress, and reducing anxiety during the learning process)
Blue (associated with trust, intelligence, and academic achievement)
Orange (associated with creativity, enthusiasm, and conversational fluency)
Purple (associated with wisdom, imagination, and cultural appreciation)