Reddit's color palette is centered around a striking orange-red hue, complemented by black and shades of gray.

The use of the bright orange-red color is a bold move that captures the attention of users and creates a sense of excitement and stimulation. It's a color that exudes energy and enthusiasm, perfectly reflecting Reddit's platform's lively and dynamic nature. This hue is also known for increasing appetite, whether for food or endless pages of news, sports, technologies, or cute pet videos, making it a perfect choice for a platform that encourages users to indulge in a wide range of topics and interests.

The use of black and shades of gray in the color palette adds depth and sophistication and also serves as a backdrop for the vibrant orange-red, allowing it to stand out and capture the attention of users.