Getting the right combination of shirt and tie can get a little confusing, especially when one or both of them are patterned. If you're the kind who constantly worries over this, or just want to get a few handy tips, keep these simple rules in mind:
Matching the right colored ties and shirts is not very hard if you have a general idea of what's tasteful or know what you want to go for. But shirts of a neutral color such as black, or white are easy to deal with as almost anything goes with them. In case of patterns, it's best to have the color of the tie's pattern match the dominant color on the shirt.
Combinations of checked ties and shirts can be really trendy if pulled off well. The trick is to combine a tie with larger checks than the shirt. The effect can be quite pleasing as long as the colors match.
Combining different patterns
If you combine a shirt and tie with near-identical patterns, the effect can be lost, or even unsettling. If you intend to keep similar patterns, try keeping the sizes different. A better combination, however is having a tie pattern that is noticeably different from the shirt's. Again, make sure the color combination looks good, you don't want to go over the top.
Matching ties and shirts is a skill that can be developed easily over time, if you try and be discerning when making choices. Follow the tips given here, and soon enough, you'll have an eye for good combinations.