[TZubiri]

But turquoise can be a blue, just because we have a specific word, doesn't mean more general words are invalieated or made as specific.

For example, things can be small or big, a mouse is small, if you refine the vocabulary to include 10 size words, and the mouse is now minuscule, it is still small.

[philipwhiuk]

For many people this is like saying 'for you red is blue'.

[TZubiri]

But in terms of the physical properties of color, namely wavelength of the photon waves, red is diametrically the opposite of blue, they are literally the most different colors. While turqouise and blue have quite adjacent centers and wider definitions.

I get that our subjective definitions can be different, but in this case the subjective differences suggest a difference in objective understanding of color (and countries apparently.)