Colorblindness is a condition where you're unable to distinguish the same broad spectrum of colors as somebody with normal color vision.
Below is a chart that is commonly used to test if you're color blind or not :
The only number I can see is 12.
I started realizing I was colorblind when I keep pulling out the wrong trash can (green/brown) when I was a kid. I would usually mistaken green as brown or brown as green. There are times where I also mistaken blue for purple or purple for blue & there are many laughing moments because of this.
There was also a video on Buzzfeed about a soccer player who constantly passes the ball to the wrong team color a lot of the times :
Colorblindness affects at least one in ten men & is rarer in women.
Are you colorblind?