An all-black outfit can still have plenty of contrast. Use the difference between surfaces and silhouettes to give Sandro Saudi Arabia's Dressed in Black edit your own direction. For daytime, let a simple combination of upper and lower pieces establish the look. For an evening setting, a change in the outer layer or footwear can shift the mood while the black palette continues to connect every part of the outfit.
The women's clothing and shirts provide focused routes into the same palette. Keep the colours consistent as you vary the proportions, then decide whether accessories should continue the line or interrupt it with a single different tone.