If a person is red color blind, what do they see instead of the color red?!

Question: If a person is red color blind, what do they see instead of the color red!?

do they see it in grayscale/black and white, or do they not see it at all!. For example, if a person is looking at something that has a white background and red text, do they see all white, or does the red text show in black and white!?Www@Answer-Health@Com

Answers:

usually when some1 is colorblind to red it called red-green color blindness!. they cant tell the difference between red and green color blindness, its very common and about 1/5 males have some form of it
http://en!.wikipedia!.org/wiki/Color_blind!.!.!.
the second line of colors is wut it looks likeWww@Answer-Health@Com

Red appears as black, although most colour blind people (including complete achromats) can differentiate black and red in some lighting situations!.Www@Answer-Health@Com

They see different shades of grey!.Www@Answer-Health@Com

I think they see like grey instead!.

I'm not sure though!.Www@Answer-Health@Com

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If a person is red color blind, what do they see instead of the color red?!

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