As a colorblind player, quest area indicators are impossible to see.

[Canadane]

How easily can you see the green ones from levequests?

[Tylian]

How easily can you see the green ones from levequests?

Fairly easily. The blue and green ones I do not have an issue with, but the red one is close enough to the brown background that it's practically invisible to me.

[...] remember that you can click "map" for the quest and it will open the map where the quest is (what I'm trying to say is: you can "limit" your search a little even in the big HW-areas...)

Normally that's helpful, yes. But it doesn't always work. This particular quest for example ends up showing half of the Churning Mists on the map when I do that, I spent a good 3 minutes trying to find it even using the hint the game gave me.

Would it help if they added an option for it to flash or maybe rotate through different colours?

Yeah, having an ant-trail type effect around the border would work really well, although it would be annoying for regular users I suspect.

[FinaSel]

How easily can you see the green ones from levequests?

I didn't even know they were different colors!

While I can see the circle in the image, I do have trouble discerning some colors from others.

And just to put this out there, yes, women can be colorblind too. A lot of people think it's only men who are affected, but women are too!