Dark maroon to baby poop to banana yellow Gradient Palette

/* https://grabient.com/_gHOgHzgGlf2Tf0If3dgDFgFrgDZhBdggugAA?style=radialSwatches&steps=8&angle=135 */

background: radial-gradient(circle, #3b0000 0.000%, #3b0000 12.500%, #550900 calc(12.500% + 1px), #550900 25.000%, #714100 calc(25.000% + 1px), #714100 37.500%, #8d7f00 calc(37.500% + 1px), #8d7f00 50.000%, #a8bd08 calc(50.000% + 1px), #a8bd08 62.500%, #c2f41d calc(62.500% + 1px), #c2f41d 75.000%, #d9ff35 calc(75.000% + 1px), #d9ff35 87.500%, #edff4f calc(87.500% + 1px) 100.000%);

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            <!-- https://grabient.com/_gHOgHzgGlf2Tf0If3dgDFgFrgDZhBdggugAA?style=radialSwatches&steps=8&angle=135 -->
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["#3b0000", "#550900", "#714100", "#8d7f00", "#a8bd08", "#c2f41d", "#d9ff35", "#edff4f"]

// https://grabient.com/_gHOgHzgGlf2Tf0If3dgDFgFrgDZhBdggugAA?style=radialSwatches&steps=8&angle=135
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 8.0;

vec3 palette(float t) {
    vec3 a = vec3(0.462, 0.499, 0.421);
    vec3 b = vec3(-0.621, -0.760, -0.547);
    vec3 c = vec3(0.197, 0.363, 0.217);
    vec3 d = vec3(4.189, 2.094, 0.000);
    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;
    // circle to the farthest corner (CSS default)
    float t = length(p) / length(0.5 * iResolution.xy);
    fragColor = vec4(stops(t), 1.0);
}

[
  [0.462, 0.499, 0.421],
  [-0.621, -0.760, -0.547],
  [0.197, 0.363, 0.217],
  [4.189, 2.094, 0.000]
]