Gradient palette editor — #00f2ff to #af6ff0

/* https://grabient.com/_f3Xf9ygPGgXAgSugAhgBmgBmgJhgMngBEgAD */

background: linear-gradient(90deg, #00f2ff 0.000%, #1be3fd 16.667%, #3ed1f9 33.333%, #5fbcf3 50.000%, #7ca4ef 66.667%, #978bee 83.333%, #af6ff0 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_f3Xf9ygPGgXAgSugAhgBmgBmgJhgMngBEgAD -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#00f2ff" /><stop offset="0.167" stop-color="#1be3fd" /><stop offset="0.333" stop-color="#3ed1f9" /><stop offset="0.500" stop-color="#5fbcf3" /><stop offset="0.667" stop-color="#7ca4ef" /><stop offset="0.833" stop-color="#978bee" /><stop offset="1.000" stop-color="#af6ff0" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#00f2ff", "#1be3fd", "#3ed1f9", "#5fbcf3", "#7ca4ef", "#978bee", "#af6ff0"]

// https://grabient.com/_f3Xf9ygPGgXAgSugAhgBmgBmgJhgMngBEgAD
// 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(-0.553, -0.142, 0.966);
    vec3 b = vec3(1.472, 1.198, 0.033);
    vec3 c = vec3(0.102, 0.102, 0.609);
    vec3 d = vec3(0.807, 0.068, 0.003);
    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);
}

[
  [-0.553, -0.142, 0.966],
  [1.472, 1.198, 0.033],
  [0.102, 0.102, 0.609],
  [0.807, 0.068, 0.003]
]