The word "contour" refers to the outline or shape of something. It describes the lines or curves that define the edges or boundaries of an object or a surface. Full definition
The best part about the car would have to be it's appearance as it has the smooth contours of a sports car but the fuel efficiency of a four cylinder engine. (autolist.com)
If you are investing in baby products because you knew that you will soon have a big family then start with contour diapers. (babieslounge.com)
And honestly you could use a darker shade for contour and a lighter shade for highlighting if you want to. (nyxcosmetics.com)