Growing up, I was taught that rainbows have 6 colors. Red, orange, yellow, green, blue, and purple. It makes sense as it goes from primary color (red) to secondary color (orange) back to primary (yellow) back to secondary (green), to primary (blue) and finally ending on secondary (purple). Indigo is a blend of blue and purple, but purple is a blend of red and blue…..
In: Physics
Interesting… I was taught in school that indigo IS in the rainbow. Roy G. Biv. Red, orange, yellow, green, blue, indigo, violet. Indigo is that tricky shade that some people would call blue, and some would call purple. The rainbow also includes colours like chartreuse, aubergine and cobalt. The “colours” of the rainbow are more like the groups of colour we can see – not an all encompassing description of colour.
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