I won't impose my beliefs as to what I think is the correct way to match a tie to an outfit on others. Why should anyone take my word for it anyway? Who's to say what's the right or wrong way? There are tons of tips out there but take them for what they are - mere tips or guidelines - which are certainly useful in that they eliminate a lot of the guesswork. But remember nothing's set in concrete.
For example, they say to "pull" a color from another part of an outfit, say the shirt or suit and then find a matching tie of the same color or within the same shade. Yes, you could never go wrong "playing it safe" by following this suggestion, it's virtually foolproof, but then again, a tie of a completely different color from the opposite side of the spectrum could very well work, too.
Same goes with patterns. They say to "keep lines simple" and don't stray too much from the pattern of one's shirt or suit. Again, who says that checks and stripes definitely can't go together? At the end of the day, what it boils down to is personal preference, taste and flair, gut feeling ("does this work?") and common sense.
Of course, there are always exceptions. For example with the resurgence of the skinny tie, to participate properly in this trend, some rules need to be followed with perhaps a little less latitude allowed. But they're in place for the sake of aethestics and not because somebody just wants to be a party-pooper or assume the role of "tie police."
A little word of caution too when it comes to cute and fun ties. Sure, I'm all for playful, but there are limits - cute has its place, and this where common sense should come in. Yes, I like a teddy-bear pattern on my son's pediatric nurse's scrubs, but not on my husband's tie. I like a dinosaur explosion on my son's jammies but not on Kumee's tie. By "whimsical" this is what I mean:
When I met Kumar about a decade ago, he introduced me to the unique world of men's fashion. That initial arousal of my interest in this sub-discipline has grown and has been held ever since. Well, at the very least, I've been "sensitized" to it and can now spot (and smell!) a faux-pas from a mile away! And now, Kumar and myself are forming a dynamic duo (of sorts!) and together, we're endeavoring, to gently nudge and guide men, on to the path of sartorial "enlightenment."