Color Theory and Symbolism

In standard 8-ball pool, the black ball (the 8-ball) is the final ball that must be pocketed to win the game.

Polar bears have black skin to better absorb heat from the sun. Their fur appears white because it is translucent and hollow, reflecting light.

Hippos secrete a red, oily fluid that acts as a natural sunscreen and antibiotic. It is often referred to as blood sweat, but it is actually pinkish-red.

Hue is the attribute that differentiates colors (red vs blue vs green). Value, saturation, and luminosity are different color properties.

Color is typically defined by hue, intensity (saturation), and value (luminance). Detail or definition is a property of image sharpness, not a component of color itself.

On weather radar maps, colors indicate intensity. Red (and sometimes purple) typically represents the highest intensity of precipitation, such as heavy rain or severe storms.

Horseshoe crab blood contains hemocyanin, a copper-based oxygen-transport protein, which turns blue when oxygenated. Human blood uses hemoglobin, an iron-based protein, which turns red.

Hippopotamus milk is bright pink. This unique color occurs because hippos secrete reddish and orange acids (hipposudoric and norhipposudoric acid) that act as sunscreen and moisturizer, which can mix with their white milk.

The King of Atlantis, Kashekim Nedakh, has completely white, blind eyes. This is a result of his exposure to the blinding light of the Heart of Atlantis during the city's sinking thousands of years ago.

In Japan, the original pair of games were Red and Green. However, when the franchise was localized for North America in 1998, they were released as Pokémon Red and Pokémon Blue.

Underneath their thick, translucent white fur, polar bears actually have black skin. This black skin helps them absorb and retain heat from the sun to stay warm in freezing Arctic temperatures.

Steve Jobs was famous for his signature minimalist uniform, which almost always featured a black mock turtleneck designed by Issey Miyake, paired with blue jeans.

Brown is the most common eye color in the world, with estimates suggesting that between 70% and 79% of the global human population has brown eyes due to the dominance of melanin-producing genes.

According to official manufacturing statistics from Mars, Inc., brown is the rarest color of milk chocolate M&Ms, making up only about 13% of the total mix in a standard bag.