Half Spectrum Gradient

background-image: linear-gradient(
    90.1deg,
    rgba(245,0,0,1) 0.3%, rgba(245,41,0,1) 8%, rgba(245,66,0,1) 16.1%, rgba(249,97,0,1) 25%, rgba(235,131,0,1) 33.5%, rgba(224,143,0,1) 41.8%, rgba(233,174,0,1) 50.1%, rgba(249,201,0,1) 57.4%, rgba(233,212,0,1) 65.4%, rgba(225,233,0,1) 74%, rgba(211,233,0,1) 81.8%, rgba(182,233,0,1) 88.8%, rgba(182,233,0,1) 94.3%, rgba(191,233,0,1) 100%
);