Red. Meanwhile, in nature, it is most known for its dark purplish-blue appearance in blueberries and makes up one of the colors of the rainbow. It is very possible to invent new colors. In fact, we have created at least, three new colors: yinmn blue, ntp yellow and vantablack. There were seven days in the week, seven planets (Uranus and Pluto had not been discovered at the time) and seven notes in the musical scale. The other cultures considered blue a shade of green. However, pure distilled water could be created under controlled conditions in the laboratory. Commonly people call them VIBGYOR that is a short form of these colors. Originally he used only five colors, but later he added orange and indigo to match the number of musical notes in the major scale. We wrongly think water is colorless, gold is gold and that there are seven colors in the rainbow. It is basically a color that is somewhere in between red and green. We cannot see them because of the way our eyes and brain work. The Gay Pride flag eschews indigo in its representation of the rainbow. Our eyes determine the color of objects using cells called opponent neutrons. Different colours correspond to different frequencies of light. In line with this artistic tradition, Newton divided his color circle, which he constructed to explain additive color mixing, into seven colors. There is even a facebook group called “Get Indigo out of the rainbow”. Pink light can only exist in nature if the red light in the rainbow somehow crossed path with violet. This light blue tint is not the same we observe in the ocean. Up next was one of the colors yellow or green. The other … Why do we highlight this in between color that bridges blue and violet? The water will appear colorless but we will be able to see the light blue tint if we have lots of it. Gold appears this way because of what scientists call relativistic quantum chemistry. Everyone during the renaissance (the period between the 1300s and 1600s) agreed the rainbow had four colors: red, yellow, green and blue. These colors are red-green and blue-yellow. It shouldn’t be hard to determine. However, that will never happen since red and violet are at opposite ends of the rainbow. So, gold is yellow. It was Newton who suggested that the rainbow contains seven colours: red, orange, yellow, green, blue, indigo and violet. Vantablack is blacker than black. Combinations of different colour paints absorb more colours, and so colour is subtracted. I guess I’ll just give them a choice. When presented with a new color, we will often call it the name of another color we assume is closely related—even if they are not—without realizing we are looking at a new color. NASA adds color to its photos to highlight features of interest, allow us see lights that would have been invincible to us (because of their wavelengths) and of course, stoke our interest. Look at yellow, and the red and green sensors in your eyes are both stimulated, meaning that red + green = yellow. These are actually similar to the concept of Chakra and Aura colors, which we have discussed before. Yinmn blue (from ytrrium, indium and manganese) was first created by Professor Mas Subramanian in 2009. It has been suggested that, at the time, Newton was trying make some anology with the musical scale and the octave (with its seven intervals) and hence was keen to identify seven colours in the rainbow or visible spectrum. But, although they are fairly common occurrences, it is remarkable how little most people actually know about rainbows. But then, we all see color pink. TL;DR TL;DR: Indigo is already there in the rainbow, so it's not a secondary or tertiary colour. So, where do those colorful photos come from? The color shown at right, electric indigo, is the closest color it is possible to display on a computer to the color of the indigo color band in the rainbow. Your eyes respond only to red, green and blue. [2] His color sequence including the tertiary color indigo is kept alive today by the Roy G. Biv mnemonic. Science, our eyes, brain and even language all determine how we see colors. Just that this time, it is the atmosphere that is absorbing and reflecting the light. People who have been to space will tell you it is way duller than you think. This article is about the mnemonic.