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Lights & Shapes

Core light vocabulary

Technical visualCore navigation-light vocabulary
Core navigation-light vocabularyNamed navigation lights show their required color and arc. Text identifies every color signal.masthead · white · 225°port · red · 112.5°starboard · green · 112.5°stern · white · 135°towing · yellow · 135°all-round · 360°
Core navigation-light vocabularyNamed navigation lights show their required color and arc. Text identifies every color signal.1234561masthead · white · 225°2port · red · 112.5°3starboard · green · 112.5°4stern · white · 135°5towing · yellow · 135°6all-round · 360°

Text and position accompany every color signal

Masthead, sidelights, sternlight, towing light and all-round light have distinct colors and arcs.

Light Color Arc
Masthead light White 225°
Port sidelight Red 112.5°
Starboard sidelight Green 112.5°
Sternlight White 135°
Towing light Yellow 135°
All-round light Various 360°

Navigation lights are displayed from sunset to sunrise and also during restricted visibility as required. Day shapes communicate defined vessel conditions during the day.

2.2 Twenty-four-state launch visual family

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