Why is purple not a color of the rainbow? Do we need indigo and violet?

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Basically what the title asks.

All the other colors of the rainbow are either primary or secondary. Violet is a shade of purple and (as I’ve always understood it) indigo is somewhere between navy and purple.

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Anonymous 0 Comments

I think you just ‘outed’ yourself as not having kids.

As a parent I can tell you they combined indigo and violet into purple at least around a decade ago. I’m not sure how ‘wide spread’ this is at all, but it’s definitely ‘a thing’.

IIRC the Indigo and Violet thing came from ‘7’ being a special number in Western / Judeo-Christian beliefs (aka “7th Heaven”, etc.) and they stretched purple into indigo and violet so that we’d have 7 colors as well.

EDIT – I think people were confused by my response – what I was trying to say is that in my area we’ve removed “indigo” and “violet” from the rainbow and “purple” is taught in their place. I was being a bit light hearted in my response in saying if you had little kids you’d have known this because it was definitely a thing my parent-group, like WTF? we have to learn a new rainbow now?

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