Why are the colors of the rainbow always in the same order?

They aren't always, but there's a catch. Rainbows are the result of sunlight reflecting and refracting through tiny water droplets falling through the air. read more

They are always in the same order because the placement of each color depends on the wavelength of the light. It will always put red on the outside of the phenomenon, and (in this order) orange, yellow, green, blue, (indigo, if you think it is there), and violet inside of red. read more

They are always in the same order. They appear to reverse in the secondary rainbow because the order starts at the top, not the bottom, of the arch. It is easiest to explain why by starting with the primary rainbow. Contrary to popular belief, a rainbow is not caused by the colors separating like they do in a prism. read more

In that, the order of colors in the outer arc will be reversed. The colours in order are, Red, Orange, Yellow, Green, Blue, Indigo and Violet. :) yes.the rainbow is formed by water droplets acting as a prism, and the prism shows the color spectrum in ORDER. And you can get what's called a double rainbow. read more