I have a professional websites i want to make my website more professional , which colors shouls i use for backgroung + Font. Waiting for experts answers.
Personally, I think 333333 on ffffff or eeeeee looks clean and professional. But then again, I'm also pretty boring.
I like to use #F6F6F6 as the main page background, with white as the main content background. I use a repeating background image down the center of the page with a subtle shadow at either side for extra effect. As mentioned though, it entirely depends on your design and genre of website. What works for others might not work for you. Additionally try to avoid using bright / striking colours. As for text, #313131 on White looks nice.
I'd use a repeating background image and some solid colors like blue, gray etc. You can take my gray repeating lines from my website (see sig)
If it is a sales page, a "cloud" blue background is always nice. But it really depends on what you are trying to achieve. What is the theme and objective of your pages?