WhatsApp's signature green communicates availability, connection, and the reassuring reliability of staying in touch with the people you care about.
WhatsApp's green palette is deliberately soothing and reassuring — green universally signals safety, availability ('green means go'), and nature's calm. The primary bright green (#25D366) is recognizable as the WhatsApp icon on billions of phones worldwide. The darker greens in the interface create a sense of privacy and intimacy, like a quiet conversation in a shaded room.