Business blue is likely the most common colouration for any tie – designer or no – offered to men at traditional clothiers. It is a no-nonsense, yet non-descript base colour that bears connotations of corporatism, maturity, and uniformity. Royal blue, another popular blue variant, carries with it a much more luxurious and rich set of associations – which is why, more often than not, royal blue should be the choice over staid business blues.
Gold is what is normally considered to be a power colour for major movers and shakers within the financial or sales industries, although it is also fitting for gentlemen who want to assume properties affiliated with notions of maturity, wealth, prosperity, richness. Gold is a striking colour to pair with nearly any shade of black, and will work distinctly well in an otherwise monochromatic outfit.
Reds, particularly those in the shade of wine, bespeaks maturity, warmth, intelligence and intellectualism, and love. Red is a beautiful conservative shade that is one of the few that works better, nearly in all cases, in it's conservative incarnation rather than a bold or progressive interpretation.
Black needs no introduction. Black is classy, formal, sharp, and serious. Black pairs with nearly everything, except colours approaching black – such as navy and deep smoke or charcoal.