ken_b - 3:00 pm on Dec 15, 2012 (gmt 0)

The farther you get away from the basic underlined blue link on a white background the more attention you need to pay to the issue of color blindness.

Even a underlined blue link on a dark background could be difficult for a colorblind person to see. When you get to red or green links it can get really dicey. Contrast may more important key in those situations.

The underlining and highlighting here at WW work pretty well in combination. But occasionally a member will simply underline a word for some reason, and that gets confusing because it "looks like" a link until you run your cursor over it and it doesn't light up with the yellow highlighting.
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