Yes I just said jeans for work.
If you keep these simple instructions in mind you should be able to look super professional wearing your jeans to the office.
It has to be a dark wash, a bleu navy, a dark grey, or simply black.
Always wear it with a blouse and a structured blazer, in the same dark shade, which makes it look like a suite.
Choose a soft Jeans, with straight or slim cut, but not too tight or too loose and avoid completely the boyfriend jeans.
Of course make sure you are wearing a minimum make up on and your hair done and preferably high heels .
here are some pictures from the web, I personally find great.