Yes LIP, its a kind of color blindness... (Color blindness - Wikipedia, the free encyclopedia)
I have a close friend that has it, so i can note when someone also has... we used to have long discussions before i realized that he was daltonic... cause we would never agree about colors... he has called orange black, green brown... he used to say that red was like a shade of green ... anyway... i would love to understand how is your perception of color... like... how do you see the red and the green? they are alike? I know its hard to describe colors... but i would like very much to know...