/* https://grabient.com/_gJugFxgJigKXgFHgLPgGdgG9gHDgIPg1IgKEh8vtvolT?style=linearGradient&steps=7&angle=45 */

background: linear-gradient(45deg, #ff78ff 0.000%, #ff9eff 16.667%, #ffbdff 33.333%, #ffcfeb 50.000%, #ffcf94 66.667%, #e8be47 83.333%, #9f9f13 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gJugFxgJigKXgFHgLPgGdgG9gHDgIPg1IgKEh8vtvolT?style=linearGradient&steps=7&angle=45 -->
            <defs>
              <linearGradient id="gradient" x1="0.146" y1="0.854" x2="0.854" y2="0.146">
        <stop offset="0.000" stop-color="#ff78ff" /><stop offset="0.167" stop-color="#ff9eff" /><stop offset="0.333" stop-color="#ffbdff" /><stop offset="0.500" stop-color="#ffcfeb" /><stop offset="0.667" stop-color="#ffcf94" /><stop offset="0.833" stop-color="#e8be47" /><stop offset="1.000" stop-color="#9f9f13" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#ff78ff", "#ff9eff", "#ffbdff", "#ffcfeb", "#ffcf94", "#e8be47", "#9f9f13"]

// https://grabient.com/_gJugFxgJigKXgFHgLPgGdgG9gHDgIPg1IgKEh8vtvolT?style=linearGradient&steps=7&angle=45
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 7.0;
const float ANGLE = 45.0;

vec3 palette(float t) {
    vec3 a = vec3(0.746, 0.493, 0.734);
    vec3 b = vec3(0.666, 0.329, 0.723);
    vec3 c = vec3(0.413, 0.445, 0.451);
    vec3 d = vec3(0.866, 3.739, 0.983);
    return a + b * cos(6.283185 * (c * t + d));
}

// N stops sampled from the palette, blended like the CSS gradient
vec3 stops(float t) {
    float n = STEPS - 1.0;
    float x = clamp(t, 0.0, 1.0) * n;
    return mix(palette(floor(x) / n), palette(min(floor(x) + 1.0, n) / n), fract(x));
}

void mainImage(out vec4 fragColor, in vec2 fragCoord) {
    vec2 p = fragCoord - 0.5 * iResolution.xy;
    // CSS angle: 0 = up, clockwise; span = CSS gradient-line length
    vec2 dir = vec2(sin(radians(ANGLE)), cos(radians(ANGLE)));
    float len = abs(iResolution.x * dir.x) + abs(iResolution.y * dir.y);
    float t = dot(p, dir) / len + 0.5;
    fragColor = vec4(stops(t), 1.0);
}

[
  [0.746, 0.493, 0.734],
  [0.666, 0.329, 0.723],
  [0.413, 0.445, 0.451],
  [0.866, 3.739, 0.983]
]

Gradient palette editor — #ff78ff to #9f9f13