If you are looking for flat design, this Tick Inside A Circle SVG icon might be perfect for you. Moreover, as we have told you this SVG icon is not only great looking but also free.
You have the download buttons bellow and can choose between two popular extensions, SVG or PNG formats. Also, before downloading the Tick Inside A Circle 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