Gradient palette editor — #0c00a7 to #a3defa

/* https://grabient.com/_hhEfJNgMzhhahE_gDNgBigBlgH1gHcgNugJb */

background: linear-gradient(90deg, #0c00a7 0.000%, #0000bd 16.667%, #003fd7 33.333%, #0e78f0 50.000%, #30a6ff 66.667%, #62c8ff 83.333%, #a3defa 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_hhEfJNgMzhhahE_gDNgBigBlgH1gHcgNugJb -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#0c00a7" /><stop offset="0.167" stop-color="#0000bd" /><stop offset="0.333" stop-color="#003fd7" /><stop offset="0.500" stop-color="#0e78f0" /><stop offset="0.667" stop-color="#30a6ff" /><stop offset="0.833" stop-color="#62c8ff" /><stop offset="1.000" stop-color="#a3defa" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#0c00a7", "#0000bd", "#003fd7", "#0e78f0", "#30a6ff", "#62c8ff", "#a3defa"]

// https://grabient.com/_hhEfJNgMzhhahE_gDNgBigBlgH1gHcgNugJb
// 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(6.212, -3.507, 0.819);
    vec3 b = vec3(6.234, 4.415, 0.205);
    vec3 c = vec3(0.098, 0.101, 0.501);
    vec3 d = vec3(0.476, 0.878, 0.603);
    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);
}

[
  [6.212, -3.507, 0.819],
  [6.234, 4.415, 0.205],
  [0.098, 0.101, 0.501],
  [0.476, 0.878, 0.603]
]