Gradient palette editor — #0ec638 to #063564

/* https://grabient.com/_gGeiqfgIWgHLirngH6gP6gBjgQmgGKgG1gKD?style=linearGradient&steps=8&angle=225 */

background: linear-gradient(225deg, #0ec638 0.000%, #0071ac 14.286%, #3b30ff 28.571%, #a205f1 42.857%, #dd0088 57.143%, #be001f 71.429%, #5d080e 85.714%, #063564 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gGeiqfgIWgHLirngH6gP6gBjgQmgGKgG1gKD?style=linearGradient&steps=8&angle=225 -->
            <defs>
              <linearGradient id="gradient" x1="0.854" y1="0.146" x2="0.146" y2="0.854">
        <stop offset="0.000" stop-color="#0ec638" /><stop offset="0.143" stop-color="#0071ac" /><stop offset="0.286" stop-color="#3b30ff" /><stop offset="0.429" stop-color="#a205f1" /><stop offset="0.571" stop-color="#dd0088" /><stop offset="0.714" stop-color="#be001f" /><stop offset="0.857" stop-color="#5d080e" /><stop offset="1.000" stop-color="#063564" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#0ec638", "#0071ac", "#3b30ff", "#a205f1", "#dd0088", "#be001f", "#5d080e", "#063564"]

// https://grabient.com/_gGeiqfgIWgHLirngH6gP6gBjgQmgGKgG1gKD?style=linearGradient&steps=8&angle=225
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 8.0;
const float ANGLE = 225.0;

vec3 palette(float t) {
    vec3 a = vec3(0.414, 10.911, 0.534);
    vec3 b = vec3(0.459, 10.983, 0.506);
    vec3 c = vec3(1.018, 0.099, 1.062);
    vec3 d = vec3(0.394, 0.437, 0.643);
    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);
}

[
  [0.414, 10.911, 0.534],
  [0.459, 10.983, 0.506],
  [1.018, 0.099, 1.062],
  [0.394, 0.437, 0.643]
]