Light violet to medium slate blue to mid blue gradient palette editor

/* https://grabient.com/_gHlgJ0gDgf7Yf7CgHyf7zf5kgCwfk5gC3feegA0BvohX */

background: linear-gradient(90deg, #b5add1 0.000%, #9e81d9 16.667%, #835adc 33.333%, #6841d9 50.000%, #4f38d1 66.667%, #3943c4 83.333%, #285fb2 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_gHlgJ0gDgf7Yf7CgHyf7zf5kgCwfk5gC3feegA0BvohX -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#b5add1" /><stop offset="0.167" stop-color="#9e81d9" /><stop offset="0.333" stop-color="#835adc" /><stop offset="0.500" stop-color="#6841d9" /><stop offset="0.667" stop-color="#4f38d1" /><stop offset="0.833" stop-color="#3943c4" /><stop offset="1.000" stop-color="#285fb2" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#b5add1", "#9e81d9", "#835adc", "#6841d9", "#4f38d1", "#3943c4", "#285fb2"]

// https://grabient.com/_gHlgJ0gDgf7Yf7CgHyf7zf5kgCwfk5gC3feegA0BvohX
// 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(0.485, 0.628, 0.224);
    vec3 b = vec3(-0.379, -0.407, 0.638);
    vec3 c = vec3(-0.269, -0.412, 0.176);
    vec3 d = vec3(-1.648, 0.270, -2.059);
    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);
}

[
  [0.485, 0.628, 0.224],
  [-0.379, -0.407, 0.638],
  [-0.269, -0.412, 0.176],
  [-1.648, 0.270, -2.059]
]