/* https://grabient.com/_gBfgvLgLjgFCguogPFgBpgBlgBogC_gIEgLF?style=linearGradient&steps=5&angle=225 */

background: linear-gradient(225deg, #360d7e 0.000%, #2922a5 25.000%, #1c4acd 50.000%, #0e84f5 75.000%, #01cdff 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gBfgvLgLjgFCguogPFgBpgBlgBogC_gIEgLF?style=linearGradient&steps=5&angle=225 -->
            <defs>
              <linearGradient id="gradient" x1="0.854" y1="0.146" x2="0.146" y2="0.854">
        <stop offset="0.000" stop-color="#360d7e" /><stop offset="0.250" stop-color="#2922a5" /><stop offset="0.500" stop-color="#1c4acd" /><stop offset="0.750" stop-color="#0e84f5" /><stop offset="1.000" stop-color="#01cdff" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#360d7e", "#2922a5", "#1c4acd", "#0e84f5", "#01cdff"]

// https://grabient.com/_gBfgvLgLjgFCguogPFgBpgBlgBogC_gIEgLF?style=linearGradient&steps=5&angle=225
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 5.0;
const float ANGLE = 225.0;

vec3 palette(float t) {
    vec3 a = vec3(0.095, 3.019, 0.739);
    vec3 b = vec3(0.322, 2.984, 0.965);
    vec3 c = vec3(0.105, 0.101, 0.104);
    vec3 d = vec3(0.191, 0.516, 0.709);
    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);
}

[
  [0.095, 3.019, 0.739],
  [0.322, 2.984, 0.965],
  [0.105, 0.101, 0.104],
  [0.191, 0.516, 0.709]
]

Gradient palette editor — #360d7e to #01cdff