I agree about that.
You shall see that most professional sites have a white background and they choose two contrasting colors to put up the site. eg: blue and yellow/green and brown.
Dark sites will look great with some photoshop art. A gui with blue and white will perfectly match a black background.
I've posted a link about color schemes above. Meanwhile proper color selection can give your site a personality
blue- cool
red- aggresive

But as others have said, it always depend on what type of site are you going to create. But you will have to match up the theme with a suitable personality.

it depends on the kind of website. corporate sites usually have white colors, with contrasting colors. I think these site are hard to do. Cause its either its boring or it could look great.

if it isn't too light its good for me

If you werent talking about colors, then here is a popular table setup ^.^

(The picture messed up, so i will explain it)
Sidebars on each side with a main in the middle. A banner at the top.
You can also divide the main sections and sidebars into several different sections.
That is the design I use for my website.

the most colours i like when creating a design are black blue yelowish white and grey. All my sites have been worked on this idea

i prefer the lighter color codes but like saurus said, a website color cide deoends on the type and motive of the website. Gamind websites are usually dark while professional websites are lighter.

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Black and Red is a good site combination also blue and black work u can also add white or grey to anyone of those also green works well with purple for some odd reason....