Gradient palette editor — #298000 to #eba4ff

/* https://grabient.com/_gGfgIfiTGgIFgBmiUNgK5ga6gBngFMgE5gHp */

background: linear-gradient(90deg, #298000 0.000%, #007500 16.667%, #009e08 33.333%, #32963c 50.000%, #90718b 66.667%, #da8af4 83.333%, #eba4ff 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gGfgIfiTGgIFgBmiUNgK5ga6gBngFMgE5gHp -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#298000" /><stop offset="0.167" stop-color="#007500" /><stop offset="0.333" stop-color="#009e08" /><stop offset="0.500" stop-color="#32963c" /><stop offset="0.667" stop-color="#90718b" /><stop offset="0.833" stop-color="#da8af4" /><stop offset="1.000" stop-color="#eba4ff" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#298000", "#007500", "#009e08", "#32963c", "#90718b", "#da8af4", "#eba4ff"]

// https://grabient.com/_gGfgIfiTGgIFgBmiUNgK5ga6gBngFMgE5gHp
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 7.0;
const float ANGLE = 90.0;

vec3 palette(float t) {
    vec3 a = vec3(0.415, 0.543, 9.414);
    vec3 b = vec3(0.517, 0.102, 9.485);
    vec3 c = vec3(0.697, 1.722, 0.103);
    vec3 d = vec3(0.332, 0.313, 0.489);
    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);
}

[
  [0.415, 0.543, 9.414],
  [0.517, 0.102, 9.485],
  [0.697, 1.722, 0.103],
  [0.332, 0.313, 0.489]
]