Is it normal to think most people don't see turquoise?

Brown is not in the rainbow either, yet UPS thrives.

I have always thought of it as a shade of green or blue.

I believe they see it, but misidentify it. Colors of the rainbow fade naturally into the next. Red, orange, yellow, green, (turuquoise), blue. Indigo, and violet. And back to red again.

Also if you live somewhere near turquoise waters or an area heavily influenced by native americans who make pretty turquoise jewelry you may use the color more frequently.

i know what you mean because thats my favorite color but when other people see it they either call it green or blue

Once upon a time, I read that scientists said that the true colour of the universe was Turquoise. Such a beautiful colour for such a wondrous thing! Then to my dismay I found out they had changed their minds and now claimed that the true colour of the universe was beige!!!!

When I see a rainbow it is usually only the first three colors. Which is red, yellow, Orange. I hardly ever see a full rainbow. Also just because the rainbow does not have a color does not mean it should be there. Torqiouse is a mix of blue and green so it makes a lightish green blue. It always reminds me of a turtle not a rainbow. I also disagree with what is considered violet since I always thought it was purple and its not. I don't understand why they put Violet but no purple!

People see turquoise, they just call it blue or green.

I think everyone can see turquoise unless they are color blind. Its intresting though that indigo is the only tertiary color usually recognized in the rainbow spectrum.

You mean cyan?

The colour that most people don't see, is 'true' purple.
It is a non-spectral colour.
There is no such thing as the "wavelength of purple light"; it only exists as a combination.

For those interested:

http://en.m.wikipedia.org/wiki/Purple

What about teal? That's a pretty colour that I can't find many people knowing of.

There are no distinct colors and shades. There's just one big spectrum that contains all the colors we can see and of course brightness. The names of the colors simply mark points on the spectrum. There are many different chromatic circles that describe different primary- and secondary colors (some based on pigment others on light or psychology). But those are all just abstractions to make it easier to talk about color. Most people have learnd the red, blue, yellow cirlce with purple, green and orange as secondary colors*. So those are the names they usually use. But the names for the so called "shades" are less known and therefor less used.
Personally I always found the spectrum between red and blue hard to talk about - Pink, Magenta, Rose, Mauve, Violet, Purple... I literally had discussions about those for hours.



* This one has little to no practical value. In print Cyan, Magenta and Yellow are the primary colors. In Monitors it's Red, Green and Blue.

You simply have magic turquoise seeing powers.

It's true, some people can detect color more efficiently than others. It all depends on the design of the individual eyeball. Primary colors are red, yellow and blue - they cannot be made with other pigments. Secondary colors are orange, green and violet - they are made by mixing red/yellow yellow/blue and blue/red. Then there are infinite colors in between, which are shades of these colors or contain various amounts of each pigment in the concoction. So technically, turquoise is a tertiary color, one of the infinite possibilities of color mixing. Have you ever heard of alizarin, curealean our veridean? These are other colors that would not be instantly identified by most people because most people only need to know them as red, blue and green.

I've always 'seen' turquoise because I had stones and jewelry made with it when I was young.er.

For some reason, it was almost taught to me as a primary colour when I was young so I definitely see it, but in adult life, I'm amazed how many people misidentify it or don't know it. Same with mauve.