Blue triggers associations with trust, security, and dependability, which are critical for brands handling sensitive data or financial transactions. It is also one of the least polarising colours across cultures and demographics, making it a safe choice for broad audiences.
Choosing unexpected shades like electric blue or muted slate blue helps avoid the generic corporate feel. Combining blue with warm accent colours, distinctive typography, and unconventional layouts ensures the design feels intentional rather than defaulting to the safest option.