After seeing this slightly inaccurate posting on Digg I would like to set something straight as I, Atomix, am not unfamiliar with colorblindness. First off, it is not widely understood that 1 in 12 web surfers are Colorblind, but rather that 1 in 10 males are colorblind, but fine I'll accept 1 in 12. However, it must be understood that this only applies to males, only one in every few hundred females are colorblind. This is because while many females carry the colorblind gene, they are not affected by it, but pass it on to their children. So knowing this, you must account for the fact that there are female websurfers, so it may appear that All Web Design Graphics has embellished their information, so I would be interested to know the source of this particular fact. Also, some colorblind people that have problems differentiating red and green also suffer with browns, so stay away from any reds or greens on browns and all other red-green-brown combinations as best as you can. What this website failed to mention is what to do about people who struggle with blues. Well, for blues the main problem is mixing it with purples or even putting it on a red background or red on a blue background because the contrast between these colors, even with fully-color enabled people, is distracting. So to prevent from repelling colorblind websurfers, when putting any of the above color combinations in your website, try to have one of the colors dulled down a bit(add it's complimentary color, the color opposite to it on the color wheel). Finally, remember that everyone can differentiate between different shades, so keeping all of your website's colors different shades you should be able to remain colorblind friendly. If you want to make sure you don't have similar shades you can use the color blind filter that All Web Design Graphics recommends or press the print screen ("Prt Scr") button on your keyboard and paste it into Photoshop, The Gimp, or even MS Paint and set your image to grayscale. Now all you have to do is look for any areas where there should not be similar shades.

Note: As All Web Design Graphics mentioned there are many different types of colorblindness, so mention in the comments if my methods above do not suffice for a type of colorblindness.