Keep it simple.  Color schemes on the web should correspond to the client's existing color usage elsewhere such as vehicles, signage, stationery, television ad visuals, etc.  Adobe's done a fairly decent job with this forum site.  They have not gone crazy developing wild color.  Instead, they've tried to keep it corporate looking with light, medium, and dark Grays along with nice contrast color for the buttons and sub-text elements.  I've seen some nice web sites where they colored each page section a different color, but keeping it consistent and coordinated.  Sometimes it ( color ) depends on the content.  I try to approach web design much the same way I approach print design.  Web obviously involves some variations, but the fundamentals still apply.

Message was edited by: John Danek

I can just use this forum as an example.  Adobe is using Gray elements as backgrounds and text, just different percentages.  Some buttons are Blue, Some are Gold/Yellow.  So, a lt. Gray, a med. Gray, and a dark Gray, plus Blue, plus Gold / Yellow...that's 5.  Not sure what you mean by monochromatic.  5 different shades of one color?

JimVag1947 wrote:

 

Not sure what you mean by monochromatic.  5 different shades of one color?

5 Different hues of the same color.

To a computer that translates as five (5) different colors.  Definitely not "monochromatic".

That confusion having been cleared up, I must say that I'm further confused by this thread being in this forum. 

Your original question is more of a DESIGN issue than a topic to be discussed under color managenment, which is the art and science of PRESERVING the colors in the digital process from capture to print, not what color "goes" with what other color.

If I'm misconstruing your posts, I apologize in advance.  Otherwise, I'd suggest that you'd be better of posting in the Design forum:

http://forums.adobe.com/community/design_development/design