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White

✨ The sum of all colors

White is a color that our eyes perceive when light contains a broad mixture of visible wavelengths. Sunlight, for example, contains many wavelengths that together can appear white. When these different parts of the light reach the eye in suitable proportions, the brain interprets the combined signal as white.

A white surface usually reflects a large part of the visible light that falls on it rather than absorbing only a narrow range of wavelengths. Its appearance can nevertheless change with the surrounding light. A sheet of paper may look slightly yellow in warm indoor lighting or bluish under a cooler light. White is therefore not simply the absence of color: in light, it can result from the combination of many colors of visible radiation.

White also has an important role in nature and everyday life. Snow often looks white because ice crystals scatter visible light in many directions, allowing much of that light to return to our eyes. Clouds can appear white for a related reason: their tiny water droplets scatter sunlight efficiently across the visible spectrum.

On digital screens, white is produced by combining red, green, and blue light at suitable intensities in the RGB system. In painting and printing, however, white is usually treated as a material color, and the way it is produced depends on the pigments, inks, or paper involved. The meaning of white also varies between cultures, where it may be associated with ideas such as cleanliness, peace, celebration, mourning, or simplicity.

💡 Did you know?

Do you know that the polar bear is not actually white? Its hairs are actually transparent and hollow like small tubes! They capture sunlight and bounce it in all directions, which gives us the illusion that it is white. Moreover, its skin under its fur is completely black to better retain the sun's heat. It's a true camouflage champion!

If you mix red, blue, and yellow paint, you get brown. But if you mix red, blue, and green light (like on your phone screen), you get white! It's because there are two ways to make colors: with matter or with pure light. Light itself prefers white!

Why is snow white? Snow is made of tiny ice crystals that are transparent like water. But when millions of these crystals are stacked, the light bounces so much on each facet that it's sent back almost entirely to our eyes without being absorbed. It's this giant 'mirror' that gives snow its brilliant whiteness!