Aubergine to dark gray blue to dark sage gradient palette editor

/* https://grabient.com/_gowgKogFOgl0gI2gBegBfgC0gLTgHagIDgH0?style=linearGradient&steps=6&angle=225 */

background: linear-gradient(225deg, #381e3d 0.000%, #312446 20.000%, #32325b 40.000%, #3c466b 60.000%, #4e5f6a 80.000%, #697d59 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gowgKogFOgl0gI2gBegBfgC0gLTgHagIDgH0?style=linearGradient&steps=6&angle=225 -->
            <defs>
              <linearGradient id="gradient" x1="0.854" y1="0.146" x2="0.146" y2="0.854">
        <stop offset="0.000" stop-color="#381e3d" /><stop offset="0.200" stop-color="#312446" /><stop offset="0.400" stop-color="#32325b" /><stop offset="0.600" stop-color="#3c466b" /><stop offset="0.800" stop-color="#4e5f6a" /><stop offset="1.000" stop-color="#697d59" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#381e3d", "#312446", "#32325b", "#3c466b", "#4e5f6a", "#697d59"]

// https://grabient.com/_gowgKogFOgl0gI2gBegBfgC0gLTgHagIDgH0?style=linearGradient&steps=6&angle=225
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 6.0;
const float ANGLE = 225.0;

vec3 palette(float t) {
    vec3 a = vec3(2.608, 0.680, 0.334);
    vec3 b = vec3(2.420, 0.566, 0.094);
    vec3 c = vec3(0.095, 0.180, 0.723);
    vec3 d = vec3(0.474, 0.515, 0.500);
    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);
}

[
  [2.608, 0.680, 0.334],
  [2.420, 0.566, 0.094],
  [0.095, 0.180, 0.723],
  [0.474, 0.515, 0.500]
]