How to change the color of a line at the top of tabs item

Hi again

I’m almost done with making the website. Yay!
When its ready i will definitely share it in this forum.

http://sitedemo.proreact.dk

One question. In tabs i see a colored line at the top of each tabs item (in the tabs menu). Right now its the theme colour. I love it, but i need to change it to some other color for each tabs item. Is that possible?

Please. It would be a big help. Each tab item will show a different module of our software and each module comes with it’s own colour.

Thanks a lot !!!!