@keyframes bgcolor {
    0% {
        background-color: #8A40F2
    }

    33% {
        background-color: #E340F2
    }

    66% {
        background-color: #F240A8
    }

    100% {
        background-color: #E340F2
    }
}

body {
    -webkit-animation: bgcolor 47s infinite;
    animation: bgcolor 47s infinite;
    -webkit-animation-direction: alternate;
    animation-direction: alternate;
}