If the mini demo on the home page is accurate, be careful with those colors - light red & green specifically. Full protanopia is present in approximately 1-2% of males. Deuteranopia (less severe than protanopia) is present in some form in up to 5% of males of certain European descent.

For a reference, this is an approximation of what light red & light green look like for someone with protanopia: http://i.imgur.com/EGSlsmB.png