Muted duotone denim and light mauve gradient palette editor

/* https://grabient.com/_gGpgH8gL1gF-gOGgE0gDJgAlgEkgqIgqnhFP?style=angularSwatches&steps=10&angle=20 */

background: conic-gradient(from 20deg, #4c607a 0.000deg, #4c607a 36.000deg, #596675 calc(36.000deg + 0.1deg), #596675 72.000deg, #676c73 calc(72.000deg + 0.1deg), #676c73 108.000deg, #747274 calc(108.000deg + 0.1deg), #747274 144.000deg, #827878 calc(144.000deg + 0.1deg), #827878 180.000deg, #8f7e80 calc(180.000deg + 0.1deg), #8f7e80 216.000deg, #9b848a calc(216.000deg + 0.1deg), #9b848a 252.000deg, #a78a96 calc(252.000deg + 0.1deg), #a78a96 288.000deg, #b190a4 calc(288.000deg + 0.1deg), #b190a4 324.000deg, #ba96b4 calc(324.000deg + 0.1deg) 360.000deg);

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            <!-- https://grabient.com/_gGpgH8gL1gF-gOGgE0gDJgAlgEkgqIgqnhFP?style=angularSwatches&steps=10&angle=20 -->
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              <filter id="antiGap">
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["#4c607a", "#596675", "#676c73", "#747274", "#827878", "#8f7e80", "#9b848a", "#a78a96", "#b190a4", "#ba96b4"]

// https://grabient.com/_gGpgH8gL1gF-gOGgE0gDJgAlgEkgqIgqnhFP?style=angularSwatches&steps=10&angle=20
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 10.0;
const float ANGLE = 20.0;

vec3 palette(float t) {
    vec3 a = vec3(0.425, 0.508, 0.757);
    vec3 b = vec3(0.382, 0.902, 0.308);
    vec3 c = vec3(0.201, 0.037, 0.292);
    vec3 d = vec3(2.696, 2.727, 4.431);
    return a + b * cos(6.283185 * (c * t + d));
}

// N hard swatches sampled from the palette
vec3 stops(float t) {
    float i = min(floor(clamp(t, 0.0, 1.0) * STEPS), STEPS - 1.0);
    return palette(i / (STEPS - 1.0));
}

void mainImage(out vec4 fragColor, in vec2 fragCoord) {
    vec2 p = fragCoord - 0.5 * iResolution.xy;
    // conic from ANGLE, clockwise from top (CSS convention)
    float t = fract((atan(p.x, p.y) - radians(ANGLE)) / 6.283185);
    fragColor = vec4(stops(t), 1.0);
}

[
  [0.425, 0.508, 0.757],
  [0.382, 0.902, 0.308],
  [0.201, 0.037, 0.292],
  [2.696, 2.727, 4.431]
]