/* https://grabient.com/_gKJf8qgMpgEhgRjgB5gHIgBfgVZgNNgPIgBA?style=linearGradient&steps=7&angle=315 */

background: linear-gradient(315deg, #cfe2eb 0.000%, #e6e6c6 16.667%, #efe8b0 33.333%, #e8e6ce 50.000%, #d1e2ed 66.667%, #b1dbd7 83.333%, #8ed2b2 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gKJf8qgMpgEhgRjgB5gHIgBfgVZgNNgPIgBA?style=linearGradient&steps=7&angle=315 -->
            <defs>
              <linearGradient id="gradient" x1="0.854" y1="0.854" x2="0.146" y2="0.146">
        <stop offset="0.000" stop-color="#cfe2eb" /><stop offset="0.167" stop-color="#e6e6c6" /><stop offset="0.333" stop-color="#efe8b0" /><stop offset="0.500" stop-color="#e8e6ce" /><stop offset="0.667" stop-color="#d1e2ed" /><stop offset="0.833" stop-color="#b1dbd7" /><stop offset="1.000" stop-color="#8ed2b2" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#cfe2eb", "#e6e6c6", "#efe8b0", "#e8e6ce", "#d1e2ed", "#b1dbd7", "#8ed2b2"]

// https://grabient.com/_gKJf8qgMpgEhgRjgB5gHIgBfgVZgNNgPIgBA?style=linearGradient&steps=7&angle=315
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 7.0;
const float ANGLE = 315.0;

vec3 palette(float t) {
    vec3 a = vec3(0.649, -0.214, 0.809);
    vec3 b = vec3(0.289, 1.123, 0.121);
    vec3 c = vec3(0.456, 0.095, 1.369);
    vec3 d = vec3(0.845, 0.968, 0.064);
    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);
}

[
  [0.649, -0.214, 0.809],
  [0.289, 1.123, 0.121],
  [0.456, 0.095, 1.369],
  [0.845, 0.968, 0.064]
]

Gradient palette editor — #cfe2eb to #8ed2b2