Spectrum

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 1707 1707"
>
    <linearGradient
        id="a"
        x1="853.331"
        x2="853.331"
        y1=".008"
        y2="1706.66"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#66c" />
        <stop offset=".51" stop-color="#f0f" />
        <stop offset="1" stop-color="#f60" />
    </linearGradient>
    <g fill-rule="evenodd">
        <path
            fill="url(#a)"
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</svg>