Color contrast

Working on section 508, I've learned a lot about color contrast. First of all, there is a wonderful online tool for finding  a right colors for your template. I used old color and found out what I should do with them to improve a color contrast. To improve a color contrast, I use another good online tool. I think, any developer should know about color contrast  idea and use for site development. I hope, I found a right colors for my SRTR gov-site.