The colors of the rainbow always show up in the same order: red, orange, yellow, green, blue, indigo and violet. It's organized by wavelength. Red, with the longest wavelength, is on the outside ...

so he adopted eight colors for the stripes, each with its own meaning: hot pink for sex, red for life, orange for healing, yellow for sunlight, green for nature, turquoise for art, indigo for harmony, ...