/* https://grabient.com/_hnBg85fkfhjAg5HgjigBpgBmgBjgG9gHYgNa?style=linearGradient&steps=5&angle=270 */

background: linear-gradient(270deg, #a14c00 0.000%, #5c3e00 25.000%, #424724 50.000%, #53694f 75.000%, #91a16e 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_hnBg85fkfhjAg5HgjigBpgBmgBjgG9gHYgNa?style=linearGradient&steps=5&angle=270 -->
            <defs>
              <linearGradient id="gradient" x1="1.000" y1="0.500" x2="0.000" y2="0.500">
        <stop offset="0.000" stop-color="#a14c00" /><stop offset="0.250" stop-color="#5c3e00" /><stop offset="0.500" stop-color="#424724" /><stop offset="0.750" stop-color="#53694f" /><stop offset="1.000" stop-color="#91a16e" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#a14c00", "#5c3e00", "#424724", "#53694f", "#91a16e"]

// https://grabient.com/_hnBg85fkfhjAg5HgjigBpgBmgBjgG9gHYgNa?style=linearGradient&steps=5&angle=270
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 5.0;
const float ANGLE = 270.0;

vec3 palette(float t) {
    vec3 a = vec3(6.593, 3.897, -1.761);
    vec3 b = vec3(6.336, 3.655, 2.274);
    vec3 c = vec3(0.105, 0.102, 0.099);
    vec3 d = vec3(0.445, 0.472, 0.858);
    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);
}

[
  [6.593, 3.897, -1.761],
  [6.336, 3.655, 2.274],
  [0.105, 0.102, 0.099],
  [0.445, 0.472, 0.858]
]

Gradient palette editor — #a14c00 to #91a16e