There are many ways to add subtle color accents to dress up your outfit, to show a bit of fun, color or style. Many times you find them on jacket linings, button hole stitching, and bright fun socks, but enter a new (but actually old and traditional) way to add a little color.
Dress shoes can be spruced up with colorful laces, with varying degrees. Subtle color combinations such as dark brown cap-toes with caramel laces, beige oxfords with salmon laces, or oxblood wingtips with grey laces. I prefer the understated, yet complementary colors, but there may be an occasion when I want to dress up those grey suede shoes with a pair of blue laces to go with a white polo for a more casual look.
It’s a personal thing, as most of these are, so do what you feel comfortable with and wear it confidently.