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

background: linear-gradient(315deg, #0cfbf0 0.000%, #1cfeff 16.667%, #2df0ff 33.333%, #3fdaf5 50.000%, #51cce1 66.667%, #61cfda 83.333%, #70e1e6 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gDjgODgOsgEwgBmgBWgDfgMvgOjgKJgOPgLt?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="#0cfbf0" /><stop offset="0.167" stop-color="#1cfeff" /><stop offset="0.333" stop-color="#2df0ff" /><stop offset="0.500" stop-color="#3fdaf5" /><stop offset="0.667" stop-color="#51cce1" /><stop offset="0.833" stop-color="#61cfda" /><stop offset="1.000" stop-color="#70e1e6" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#0cfbf0", "#1cfeff", "#2df0ff", "#3fdaf5", "#51cce1", "#61cfda", "#70e1e6"]

// https://grabient.com/_gDjgODgOsgEwgBmgBWgDfgMvgOjgKJgOPgLt?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(0.227, 0.899, 0.940);
    vec3 b = vec3(0.304, 0.102, 0.086);
    vec3 c = vec3(0.223, 0.815, 0.931);
    vec3 d = vec3(0.649, 0.911, 0.749);
    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);
}

[
  [0.227, 0.899, 0.940],
  [0.304, 0.102, 0.086],
  [0.223, 0.815, 0.931],
  [0.649, 0.911, 0.749]
]

Gradient palette editor — #0cfbf0 to #70e1e6