what colours can colour blind people not see

[james19]

Hi
Im in the middle of creating the layout for a website and was just wondering what colours can colour blind people not see?? are there a group of colours that when they are put together cant be seen by colour blind people?? does anyone know of any good websites which give more detail on this??
Thanks in advance:D

[Yelgnidroc]

I'm colour blind. It was called red/green colour blind, but I can tell the difference between red and green!! I struggle with certain shades of green/grey/brown, but I expect everyone to be different to some extent.

[james19]

So some colour blind people can see certain colours whereas others cant. If thats true then there is no way of having a site that all colour blind people can see. Is there???:confused:

[wamboid]

The important thing is contrast, especially when it comes to font and background colors. The first post in this thread (http://www.webdeveloper.com/forum/showthread.php?t=45104) has a section about colors with some good links to check out.

[Yelgnidroc]

It's not that we can't see colours, the colours just appear differently to us. I wouldn't worry about it from a design point of view.

As wemboid says, go for contrast.

[ray326]

You may find this site interesting.

http://wellstyled.com/tools/colorscheme2/index-en.html