![]() 592A8A (89,42,138) ECU (East Carolina University) Purple. 4E2A84 (78, 48, 132) Northwestern Purple (Northwestern University) 592C82 (81, 40, 136) KSU (Kansas State University) Purple aka Pantone 268. But when you combine the blue and violet light of the sky, the greenish tinge of blue and reddish tinge of violet are about the same, and wash out. As you’ll see, you really have to have a trained eye to spot the difference between next five examples. There is confusion about the meaning of the terms purple and violet even among native speakers of English. 1 However, the meaning of the term purple is not well defined. If only violet wavelengths were scattered, then we would see violet light with a reddish tinge. In common English usage, purple is a range of hues of color occurring between red and blue. While our red cones aren't good at seeing blue or violet light, they are a bit more sensitive to violet than our green cones. Violet is scattered most by Earth's atmosphere, but the blue cones in our eyes aren't as sensitive to it. We don't see the greenish hue, however, because of the sky's violet light. If it really was blue light that was scattered most, then we'd see the sky as a slightly greenish blue. Light with "blue" wavelengths stimulate blue cones the most, but they also stimulate red and green just a little bit. ![]() While each type of cone has its peak sensitivity at red, green, or blue, they also detect light of other colors. These colors roughly correspond to the actual wavelengths we see, but there are subtle differences. When we look at something and the light strikes our retina, the strength of signal from each type of cone allows our brains to determine the colors we see. Purple is any of a variety of colors with hue between red and blue. One type is most sensitive to red wavelengths, while the other two are most sensitive to green and blue wavelengths. 558266Woodland Malibu Portage Amethyst Cherry Pie Color. Instead, the retinas of our eyes have three types of color sensitive cells known as cones. Colours that go well with Light Sky Blue And Medium Purple tone combination palettes. Shouldn't the sky appear violet, or at least a violet-blue? It turns out our sky is violet, but it appears blue because of the way our eyes work.Ĭolor sensitivity of the cones and rods of the human eye. Blue light is scattered away, leaving a reddish looking sunset.īut if that's the case, why isn't the sky violet? Sure, blue light is scattered more than red or green, but violet light has an even shorter wavelength, so violet should be scattered more than blue. This is also the reason why sunsets can appear red. So our sky appears blue because of all the scattered blue light. The shorter the wavelength, the more the light scatters. Since the rainbow of colors going from red to violet corresponds with wavelengths of light going from long to short, the shorter blue wavelengths are scattered more. One of these is that the amount of scattering depends upon the wavelength (or color) of the light. ![]() But photons and air molecules aren't billiard balls, so there are differences. If you imagine photons bouncing off molecules of air, that's a rough approximation. The main form of atmospheric scattering is known as Rayleigh scattering. When light interacts with our atmosphere it can scatter, similar to the way one billiard ball can collide with another, making them go off in different directions. This table can give you other ideas for shades of blue" or "purple.The blue sky we observe depends upon two factors: how sunlight interacts with Earth's atmosphere, and how our eyes perceive that light. The following table is a list of other colors containing the keyword "blue" or "purple" in the color name. Other colors containing "blue" or "purple" ![]()
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