The best way to decide is to look at the tone of your skin. Here are a few steps that can help you

1. Decide what your skin tone really is A) Fair white B) Dark Brown C) Darker Brown D) Olive or E) Medium fair with yellow tones

It should be noted that people from different backgrounds will have different skin tones so

Northern Europeans might have a fair or whiter tone

East Asians might have a brown or dark brown tone as would South Americans

Southern Europeans might have the same brown tone as East Asians

People from different parts of Asia such as Chine, Korea or Japan might have a fair tone with some yellowish tint.

These are just guidelines but will make a big impact on what fabric colours to select.

2. The second step is to look for contrast to your skin tone. If you are more fair, then colours like black, grey and dark blue will work best. If you are brown, then you can have brighter color like maroons, purple and pinks.

The darker your skin tone, the MORE colour you can have in the fabrics you select! Experiment with colour and don't be afraid!