Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and the CMYK color model, and is the complementary color of cyan.

The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength. These shorter wavelengths correspond to blue hues, hence why when we look at the sky, we see it as blue.

Blue light is scattered in all directions by the tiny molecules of air in Earth’s atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white.

Light receptors within the eye transmit messages to the brain, which produces the familiar sensations of color. Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors.

The first thing to remember is that colour does not actually exist… at least not in any literal sense. Apples and fire engines are not red, the sky and sea are not blue, and no person is objectively “black” or “white”. But colour is not light. Colour is wholly manufactured by your brain.

yellow

Red is more effective for impulse purchases, so it’s a common buy button choice on ecommerce websites. But it’s more effective for B2B software vendors too. When HubSpot A/B tested CTA button color for Performable, red out-converted green by 21%. Red seems to perform best across the board.

What else should I keep in my wallet to attract money?

• Jade.
• Emerald.
• Green tourmaline.
• Peridot.
• Malachite.
• Calcite.
• Adventurine.

Green

As per Vastu Shastra, one of the best ways to ensure financial stability is to grow your wealth in the earth corner of the home —the south-west. All your jewellery, money and important financial documents must be kept in the south-west (store such things in a cupboard or safe), facing north or north-east.

Green is sometimes associated with poison or acid, two dangerous and harmful substances. It can represent the wild and untamed danger of nature, or it can just be used to make something look atypical. Regular fire is red, green fire is weird. Typically, it’s either black or red that’s associated with evil.

Yellow

Dark Green