Highway of Life wrote:
I've thought about that before, so some of us do think of it, especially when dealing with the CAPTCHA.
I've always wondered. If you are red-green colorblind*, do both red and green look red, or green?
Is it even possible to know this?
No, we can't know. We cannot see red or green. So, depending on the hue, saturation, etc the color* will look different. For example, brown and green for me are the same, usually, again, it depends on the hue. Some "light" greens look yellow, they green traffic signal looks white, but typically if it is a dark green or brown, I think it is brown, if it is a light green or brown, I think it is green. I can't tell a difference between a ripe banana and a green banana. I always have to ask the clerk if the banana is ripe or not, so I know if I should eat it today or in the next couple of days.
Purples, blues with a red hint, look blue to me always! Soft blues and pinks look the same.
As you can tell, it is not as simple as red and green looks the same, it affects many colors*. And that is just for red-green daltonism, there are actually two different types of red-green colorblindness*, so depending on what type you are, you will see different colors*.
I often have a difficult time with CAPTCHA's, depending on how they are done. I often have to try a couple of times before I get it correct. But, for me, this is part of life and I deal with it. I don't get upset or ask others to change for me, except on some CAPTCHA's where the choices made are just too great for me to handle. Some websites, I can't go to because they actually hurt my eyes.
*insert "u" after the second "o" for my non-American friends.