Gradient palette editor — #0c343f to #c6a347

/* https://grabient.com/_gGmgG4gEtgF5gDugCFgI9gI2gY6gHjgIOgKp?style=linearGradient&steps=8&angle=225 */

background: linear-gradient(225deg, #0c343f 0.000%, #134169 14.286%, #325963 28.571%, #5f7736 42.857%, #8f9430 57.143%, #b7a75b 71.429%, #caad6d 85.714%, #c6a347 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gGmgG4gEtgF5gDugCFgI9gI2gY6gHjgIOgKp?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="#0c343f" /><stop offset="0.143" stop-color="#134169" /><stop offset="0.286" stop-color="#325963" /><stop offset="0.429" stop-color="#5f7736" /><stop offset="0.571" stop-color="#8f9430" /><stop offset="0.714" stop-color="#b7a75b" /><stop offset="0.857" stop-color="#caad6d" /><stop offset="1.000" stop-color="#c6a347" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#0c343f", "#134169", "#325963", "#5f7736", "#8f9430", "#b7a75b", "#caad6d", "#c6a347"]

// https://grabient.com/_gGmgG4gEtgF5gDugCFgI9gI2gY6gHjgIOgKp?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(0.422, 0.440, 0.301);
    vec3 b = vec3(0.377, 0.238, 0.133);
    vec3 c = vec3(0.573, 0.566, 1.594);
    vec3 d = vec3(0.483, 0.526, 0.681);
    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);
}

[
  [0.422, 0.440, 0.301],
  [0.377, 0.238, 0.133],
  [0.573, 0.566, 1.594],
  [0.483, 0.526, 0.681]
]