Yup.... Colorblind here too. I hate it and have always hated it for all of my 48 years.

I can see red and green fine, but for some reason, I have trouble with shades of red and brown.

Example: Click on the link below and look at the colored dots. What numbers can you see?

http://www.toledo-bend.com/colorblind/Ishihara.asp

Here's what I see....

Top Left...........Top Right
25....................20? (something is there, but, I can't make it out)

Middle Left.......Middle Right
Dots.................56

Bottom Left......Bottom Right
Dots.................Dots

Bottom picture
I see an "8". How f'd up is that?

The biggest fear I have is bowhunting and not being able to find the blood trail. But so far, I haven't had any problems (thank God). I'm just lucky that I also have a .308 w/ scope for rifle season. Bang...flop...venison on the table...