Sunset rouge to pale violet red to ivory gradient palette editor

/* https://grabient.com/_fwxgITfoPgfIgHkgnGgBigGMgBpgOKgJGgNr?style=angularSwatches&steps=4&angle=0 */

background: conic-gradient(from 0deg, #ad1c3f 0.000deg, #ad1c3f 90.000deg, #de6c97 calc(90.000deg + 0.1deg), #de6c97 180.000deg, #fbcdd4 calc(180.000deg + 0.1deg), #fbcdd4 270.000deg, #fffff5 calc(270.000deg + 0.1deg) 360.000deg);

<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
            <!-- https://grabient.com/_fwxgITfoPgfIgHkgnGgBigGMgBpgOKgJGgNr?style=angularSwatches&steps=4&angle=0 -->
            <defs>
              <clipPath id="squareClip">
                <rect x="0" y="0" width="800" height="400" />
              </clipPath>
              <filter id="antiGap">
                <feGaussianBlur in="SourceGraphic" stdDeviation="0.3" />
              </filter>
            </defs>
            <g clip-path="url(#squareClip)" filter="url(#antiGap)" shape-rendering="crispEdges">
          <path d="
              M 400.000,200.000
              L 400.000,-247.214
              A 447.214,447.214 0 0 1 847.214,200.000
              Z
            " fill="#ad1c3f" fill-opacity="1.000" /><path d="
              M 400.000,200.000
              L 847.214,200.000
              A 447.214,447.214 0 0 1 400.000,647.214
              Z
            " fill="#de6c97" fill-opacity="1.000" /><path d="
              M 400.000,200.000
              L 400.000,647.214
              A 447.214,447.214 0 0 1 -47.214,200.000
              Z
            " fill="#fbcdd4" fill-opacity="1.000" /><path d="
              M 400.000,200.000
              L -47.214,200.000
              A 447.214,447.214 0 0 1 400.000,-247.214
              Z
            " fill="#fffff5" fill-opacity="1.000" /></g>
        </svg>

["#ad1c3f", "#de6c97", "#fbcdd4", "#fffff5"]

// https://grabient.com/_fwxgITfoPgfIgHkgnGgBigGMgBpgOKgJGgNr?style=angularSwatches&steps=4&angle=0
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 4.0;
const float ANGLE = 0.0;

vec3 palette(float t) {
    vec3 a = vec3(-0.975, 0.531, -1.521);
    vec3 b = vec3(1.992, 0.484, 2.502);
    vec3 c = vec3(0.098, 0.396, 0.105);
    vec3 d = vec3(0.906, 0.582, 0.875);
    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);
}

[
  [-0.975, 0.531, -1.521],
  [1.992, 0.484, 2.502],
  [0.098, 0.396, 0.105],
  [0.906, 0.582, 0.875]
]