What color of smoke signal indicates distress?

The indication of distress is universally recognized by the use of specific signals, and the term "RESCUE" is an unequivocal message designed to capture immediate attention. Unlike colors, which may have varying interpretations or meanings in different contexts, the word "RESCUE" clearly delivers a singular message of needing help. By using easily understood language, it communicates urgency and the need for assistance, eliminating any ambiguity that might arise from color signals on their own.

Color signals, while also important in various situations, can be interpreted differently across different contexts or by different organizations. In maritime or aviation rescue operations, for example, the use of visual signals is standardized, but the word "RESCUE" directly denotes a call for immediate action and support, making it a more effective means of communication in a distress scenario.