If you need some flat design ideas, try out this Database Configuration svg icon. This icon it's free and all you have to look for Download button bellow, or copy the code of it.
You have the download buttons bellow and can choose between two popular extensions, SVG or PNG formats. Also, before downloading the Database Configuration SVG icon, you can try the colors from the top of the icon, and test it, if the color fit with your ideas. If not, just refresh the page and you'll have new posibillities