Autumn chestnut to sepia to sandstone gradient palette editor

/* https://grabient.com/_f5VgG0gHTgU9gEygFcgBjgFvgE7gNPgJDgHB?style=linearGradient&steps=6&angle=315 */

background: linear-gradient(315deg, #572b23 0.000%, #78421f 20.000%, #966328 40.000%, #b0873e 60.000%, #c5a65c 80.000%, #d6b97f 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_f5VgG0gHTgU9gEygFcgBjgFvgE7gNPgJDgHB?style=linearGradient&steps=6&angle=315 -->
            <defs>
              <linearGradient id="gradient" x1="0.854" y1="0.854" x2="0.146" y2="0.146">
        <stop offset="0.000" stop-color="#572b23" /><stop offset="0.200" stop-color="#78421f" /><stop offset="0.400" stop-color="#966328" /><stop offset="0.600" stop-color="#b0873e" /><stop offset="0.800" stop-color="#c5a65c" /><stop offset="1.000" stop-color="#d6b97f" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#572b23", "#78421f", "#966328", "#b0873e", "#c5a65c", "#d6b97f"]

// https://grabient.com/_f5VgG0gHTgU9gEygFcgBjgFvgE7gNPgJDgHB?style=linearGradient&steps=6&angle=315
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 6.0;
const float ANGLE = 315.0;

vec3 palette(float t) {
    vec3 a = vec3(-0.427, 0.436, 0.467);
    vec3 b = vec3(1.341, 0.306, 0.348);
    vec3 c = vec3(0.099, 0.367, 0.315);
    vec3 d = vec3(0.847, 0.579, 0.449);
    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);
}

[
  [-0.427, 0.436, 0.467],
  [1.341, 0.306, 0.348],
  [0.099, 0.367, 0.315],
  [0.847, 0.579, 0.449]
]