Dark navy blue to rose gradient palette editor

/* https://grabient.com/_hahgCzgGxhZvgCAgCegBjgKxgFzgHzgIbgHf */

background: linear-gradient(90deg, #0d0e46 0.000%, #141b47 16.667%, #2a314e 33.333%, #50465a 50.000%, #854e68 66.667%, #c94678 83.333%, #ff3286 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_hahgCzgGxhZvgCAgCegBjgKxgFzgHzgIbgHf -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#0d0e46" /><stop offset="0.167" stop-color="#141b47" /><stop offset="0.333" stop-color="#2a314e" /><stop offset="0.500" stop-color="#50465a" /><stop offset="0.667" stop-color="#854e68" /><stop offset="0.833" stop-color="#c94678" /><stop offset="1.000" stop-color="#ff3286" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#0d0e46", "#141b47", "#2a314e", "#50465a", "#854e68", "#c94678", "#ff3286"]

// https://grabient.com/_hahgCzgGxhZvgCAgCegBjgKxgFzgHzgIbgHf
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 7.0;
const float ANGLE = 90.0;

vec3 palette(float t) {
    vec3 a = vec3(5.793, 0.179, 0.433);
    vec3 b = vec3(5.743, 0.128, 0.158);
    vec3 c = vec3(0.099, 0.689, 0.371);
    vec3 d = vec3(0.499, 0.539, 0.479);
    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);
}

[
  [5.793, 0.179, 0.433],
  [5.743, 0.128, 0.158],
  [0.099, 0.689, 0.371],
  [0.499, 0.539, 0.479]
]