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There are basically four different types of buoys we might encounter in US waters: Red, green, red and green horizontally striped, and red and white vertically striped. We will talk about special buoys further below. Each one may or may not have a light. The light color will be green, red, or white. Lights are often used where greater caution must be exercised such as a bend or narrowing of a channel. Also, especially in areas where fog may exist, some buoys make sounds such as a whistle, bell, or gong. Green and red buoys.
Yellow is the most luminous of all the colors of the spectrum. Itâs the color that captures our attention more than any other color. In the natural world, yellow is the color of sunflowers and daffodils, egg yolks and lemons, canaries and bees. In our contemporary human-made world, yellow is the color of Sponge Bob, the Tour de France winnerâs jersey, happy faces, post its, and signs that alert us to danger or caution. Itâs the color of happiness, and optimism, of enlightenment and creativity, sunshine and spring. Lurking in the background is the dark side of yellow: cowardice, betrayal, egoism, and madness. Furthermore, yellow is the color of caution and physical illness (jaundice, malaria, and pestilence). Perhaps itâs no coincidence that the sources of yellow pigments are toxic metals - cadmium, lead, and chrome - and urine.