Gradient palette editor — #15a37b to #f3d1fd

/* https://grabient.com/_gEUgbRg_XgKxgRSg4DgEKgBigBlgLBgHugHm */

background: linear-gradient(90deg, #15a37b 0.000%, #46a477 16.667%, #76a77e 33.333%, #a3ad8f 50.000%, #c8b6aa 66.667%, #e4c2cf 83.333%, #f3d1fd 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gEUgbRg_XgKxgRSg4DgEKgBigBlgLBgHugHm -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#15a37b" /><stop offset="0.167" stop-color="#46a477" /><stop offset="0.333" stop-color="#76a77e" /><stop offset="0.500" stop-color="#a3ad8f" /><stop offset="0.667" stop-color="#c8b6aa" /><stop offset="0.833" stop-color="#e4c2cf" /><stop offset="1.000" stop-color="#f3d1fd" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#15a37b", "#46a477", "#76a77e", "#a3ad8f", "#c8b6aa", "#e4c2cf", "#f3d1fd"]

// https://grabient.com/_gEUgbRg_XgKxgRSg4DgEKgBigBlgLBgHugHm
// 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(0.276, 1.745, 4.055);
    vec3 b = vec3(0.689, 1.106, 3.587);
    vec3 c = vec3(0.266, 0.098, 0.101);
    vec3 d = vec3(0.705, 0.494, 0.486);
    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);
}

[
  [0.276, 1.745, 4.055],
  [0.689, 1.106, 3.587],
  [0.266, 0.098, 0.101],
  [0.705, 0.494, 0.486]
]