Ring

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 491.5 491.5"
>
    <g fill-rule="evenodd" clip-rule="evenodd">
        <g fill="#797979">
            <path
                d="M245.8 462.7c-88.2 0-160-71.8-160-160 0-33.3 10.1-65.2 29.3-92.3 18.8-26.5 44.7-46.4 75-57.7 2.5-.9 5.2.3 6.1 2.8.9 2.4-.3 5.2-2.8 6.1-58.7 21.8-98.1 78.5-98.1 141.1 0 83 67.5 150.5 150.5 150.5s150.5-67.5 150.5-150.5c0-62.6-39.4-119.4-98.1-141.1-2.5-.9-3.7-3.6-2.8-6.1s3.6-3.7 6.1-2.8c30.3 11.2 56.2 31.2 75 57.7 19.2 27.1 29.3 59 29.3 92.3-.1 88.3-71.8 160-160 160z"
            />
            <path
                d="M245.8 188.4c-63.1 0-114.3 51.3-114.3 114.3s51.3 114.4 114.4 114.4c63 0 114.3-51.3 114.3-114.4-.1-63-51.4-114.3-114.4-114.3zm0 238.2C177.5 426.6 122 371 122 302.7s55.5-123.8 123.8-123.8 123.8 55.6 123.8 123.8c0 68.3-55.6 123.9-123.8 123.9zM358.2 200.4c-1.8 0-3.5-1-4.3-2.7-17.9-38-40.2-68.6-66.3-91.2-2-1.7-2.2-4.7-.5-6.7s4.7-2.2 6.7-.5c27.1 23.4 50.2 55.1 68.7 94.2 1.1 2.4.1 5.2-2.2 6.3-.7.5-1.4.6-2.1.6zM133.3 200.4c-.7 0-1.4-.1-2-.5-2.4-1.1-3.4-3.9-2.2-6.3 18.5-39.2 41.6-70.9 68.7-94.2 2-1.7 5-1.5 6.7.5s1.5 5-.5 6.7c-26.1 22.5-48.4 53.2-66.3 91.2-.9 1.6-2.6 2.6-4.4 2.6z"
            />
        </g>
        <path
            fill="#aeaeae"
            d="m361.9 100.9 9.2 5c1.5.8 2.6 1.9 3.4 3.4l5 9.2 5-9.2c.8-1.5 1.9-2.6 3.4-3.4l9.2-5-9.2-5c-1.5-.8-2.6-1.9-3.4-3.4l-5-9.2-5 9.2c-.8 1.5-1.9 2.6-3.4 3.4zm17.6 28.3c-3.1 0-5.9-1.7-7.4-4.4l-5.8-10.7-10.7-5.8c-2.7-1.5-4.4-4.3-4.4-7.4s1.7-5.9 4.4-7.4l10.7-5.8 5.8-10.7c1.5-2.7 4.3-4.4 7.4-4.4s5.9 1.7 7.4 4.4l5.8 10.7 10.7 5.8c2.7 1.5 4.4 4.3 4.4 7.4s-1.7 5.9-4.4 7.4l-10.7 5.8-5.8 10.7c-1.5 2.7-4.4 4.4-7.4 4.4zM94.5 100.9l9.2 5c1.5.8 2.6 1.9 3.4 3.4l5 9.2 5-9.2c.8-1.5 1.9-2.6 3.4-3.4l9.2-5-9.2-5c-1.5-.8-2.6-1.9-3.4-3.4l-5-9.2-5 9.2c-.8 1.5-1.9 2.6-3.4 3.4zm17.6 28.3c-3.1 0-5.9-1.7-7.4-4.4l-5.8-10.7-10.7-5.8c-2.7-1.5-4.4-4.3-4.4-7.4s1.7-5.9 4.4-7.4l10.7-5.8 5.8-10.7c1.5-2.7 4.3-4.4 7.4-4.4s5.9 1.7 7.4 4.4l5.8 10.7 10.7 5.8c2.7 1.5 4.4 4.3 4.4 7.4s-1.7 5.9-4.4 7.4l-10.7 5.8-5.8 10.7c-1.5 2.7-4.3 4.4-7.4 4.4zM263.1 140.4c-1.2 0-2.4-.4-3.3-1.3-1.9-1.8-1.9-4.8-.1-6.7 21.4-22.2 41.2-46 41.2-68.9 0-6.7-2.6-13-7.4-17.8s-11.1-7.4-17.8-7.4c-11.8 0-18.3 5-25.7 19.8-.8 1.6-2.4 2.6-4.2 2.6s-3.4-1-4.2-2.6c-7.4-14.8-13.9-19.8-25.7-19.8-13.9 0-25.2 11.3-25.2 25.2 0 22.9 19.8 46.7 41.2 68.9 1.8 1.9 1.8 4.9-.1 6.7s-4.9 1.8-6.7-.1c-22.8-23.7-43.8-49.2-43.8-75.5 0-19.1 15.5-34.7 34.6-34.7 14.7 0 23.2 6.7 29.9 17.4 6.7-10.7 15.2-17.4 29.9-17.4 9.2 0 18 3.6 24.5 10.1s10.1 15.2 10.1 24.5c0 26.3-21.1 51.8-43.9 75.5-.9 1-2.1 1.5-3.3 1.5z"
        />
        <path
            fill="#797979"
            d="M299.8 201.3c-2.6 0-4.7-2.1-4.7-4.7v-43.7c0-6.9-5.6-12.5-12.5-12.5H209c-6.9 0-12.5 5.6-12.5 12.5v43.7c0 2.6-2.1 4.7-4.7 4.7s-4.7-2.1-4.7-4.7v-43.7c0-12.1 9.9-22 22-22h73.5c12.1 0 22 9.9 22 22v43.7c-.1 2.6-2.2 4.7-4.8 4.7z"
        />
    </g>
</svg>