Colors that contrast are pleasing to the eye if done tastefully. Start with solid colors so as not to create conflicting patterns, such as having a dark pair of pants worn with a bright blue solid color polo shirt. If your pants are solid black your shirt can be almost any color and look great, even the wilder shades such as lime green or pink. Avoid having your shirt and pants in the same exact bright color as that looks more like a clown costume than an exciting fashion statement. You can wear black on black though if you are going for a classic look, then accessorize with a bright color. Black and white make excellent color contrasts as well. There is no need to be limited in your choices.
A great look can be made of tan chinos and a navy blue dress shirt. The same can be said for a bright yellow shirt worn with dark gray pants. Another fun casual look is wearing a purple shirt with new blue jeans offset with a white belt. One great way to catch attention is to wear a suit that is the same color for the jacket and pants of say light blue, or gray, and wear a bright solid color t-shirt with it. This juxtaposition of the dressy suit with the bright casual t-shirt demonstrates a bit of flair, showing that you could dress up if you wanted to, but instead you choose not to. A super look is wearing all black (pants and shirt) with a bright red vest over it. Dark browns work well with gold and we always have room for more combinations that are expressed as two darker tones such as dark grey with emerald green or black with deep burgundy.
For more formal dress we like the look of the grey suit, dark blue tie, and bright colored shirt. Politicians favor the dark suit, white shirt and dark red tie which is a strong powerful look. The idea is to think of the solid darker color as the pallet to put the splash of bright color on. It works will with accessories when the dark suit is worn with a bright pocket square. The change up of color is pleasing to the eye.
Try to experiment with color combinations that you are not normally wearing. Lay out your clothes and play mix and match to see how many interesting combinations that you can come up with. If your wardrobe is rather drab it will become apparent and that means it is time to go shopping for some colorful things to spice it up a bit. According to the contrast color wheel, there are certain colors that are designated as primary and that have a complimentary color. These are the color combinations that are the most different in terms of the color spectrum. They are red with green, yellow with purple, and blue with orange. You can choose high contrast or you can also soften the shades with pastels for a smoother look. Either way the contrast of colors can be used in a fun way to create a great look.