What's the most professional COLOR design for Master Page?

Question

end-user. aliceblue?

Answer 1

Ever wonder why so many interfaces are blue, green, or purple? Those colors are easy to the eyes, whereas red, orange, and yellow are more aggravating. There are exceptions (see CNN), but I've found that a white base with blue, green, or purple coloring is the most agreeable color scheme.

Besides, it heavily depends on your site and user base, such as whether or not this is being developed for internal use (in which case you may need to conform to the company's color palette).

IMHO, anyway.