Don't wanna look dull in full black working outfit, here's a tip for you. Match the dark outfit with a colourful scarf. For a more elegant look, I'd suggest a thin silky scarf, although a cotton one would do as well in the winter. The sheer texture of a silky scarf does not only gives a glow to the entire look, it also creates a luxurious gesture. See how the green scarf adds a playful hint to the plain black & pink look I put on. Don't be afraid to mix and match colourful scarves! 

Blazer - H&M

Black and gold top - Episode

Green scarf - From mother

Fuchsia bottom - H&M

Shoes - Nine West