A client of mine texted me the other day wondering if she could wear black and blue together. Specifically a navy sweatshirt she bought with me with black trousers. This particular sweatshirt I didn’t think could work with black pants because it was TOO close to looking black, therefore making her look like she could be color blind. The key to wearing blue and black is the two colors have to look different enough and have enough CONTRAST. Here is a visual example of what I meant.