Dark navy to dark periwinkle to light gray gradient palette editor

/* https://grabient.com/_f60gG2gGcgVngGDgH2gBjgHvgGLgMYgHugKr */

background: linear-gradient(90deg, #070d35 0.000%, #2a1868 16.667%, #4b3a9c 33.333%, #6b6ac7 50.000%, #899ce2 66.667%, #a4c2e9 83.333%, #bcd2da 100.000%);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_f60gG2gGcgVngGDgH2gBjgHvgGLgMYgHugKr -->
            <defs>
              <linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
        <stop offset="0.000" stop-color="#070d35" /><stop offset="0.167" stop-color="#2a1868" /><stop offset="0.333" stop-color="#4b3a9c" /><stop offset="0.500" stop-color="#6b6ac7" /><stop offset="0.667" stop-color="#899ce2" /><stop offset="0.833" stop-color="#a4c2e9" /><stop offset="1.000" stop-color="#bcd2da" />
              </linearGradient>
            </defs>
            <rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
          </svg>

["#070d35", "#2a1868", "#4b3a9c", "#6b6ac7", "#899ce2", "#a4c2e9", "#bcd2da"]

// https://grabient.com/_f60gG2gGcgVngGDgH2gBjgHvgGLgMYgHugKr
// 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(-0.332, 0.438, 0.412);
    vec3 b = vec3(1.383, 0.387, 0.502);
    vec3 c = vec3(0.099, 0.495, 0.395);
    vec3 d = vec3(0.792, 0.494, 0.683);
    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);
}

[
  [-0.332, 0.438, 0.412],
  [1.383, 0.387, 0.502],
  [0.099, 0.495, 0.395],
  [0.792, 0.494, 0.683]
]