/* https://grabient.com/_gIogIOgF6gHSgI7gIhgOggRFgPzgCDgFkgK0?style=linearGradient&steps=9&angle=180 */
background: linear-gradient(180deg, #de2c2f 0.000%, #8f009a 12.500%, #3f22e3 25.000%, #1795de 37.500%, #2afd8d 50.000%, #70ff22 62.500%, #c4c800 75.000%, #fc4f00 87.500%, #fc0038 100.000%);
<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
<!-- https://grabient.com/_gIogIOgF6gHSgI7gIhgOggRFgPzgCDgFkgK0?style=linearGradient&steps=9&angle=180 -->
<defs>
<linearGradient id="gradient" x1="0.500" y1="0.000" x2="0.500" y2="1.000">
<stop offset="0.000" stop-color="#de2c2f" /><stop offset="0.125" stop-color="#8f009a" /><stop offset="0.250" stop-color="#3f22e3" /><stop offset="0.375" stop-color="#1795de" /><stop offset="0.500" stop-color="#2afd8d" /><stop offset="0.625" stop-color="#70ff22" /><stop offset="0.750" stop-color="#c4c800" /><stop offset="0.875" stop-color="#fc4f00" /><stop offset="1.000" stop-color="#fc0038" />
</linearGradient>
</defs>
<rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
</svg>
["#de2c2f", "#8f009a", "#3f22e3", "#1795de", "#2afd8d", "#70ff22", "#c4c800", "#fc4f00", "#fc0038"]
// https://grabient.com/_gIogIOgF6gHSgI7gIhgOggRFgPzgCDgFkgK0?style=linearGradient&steps=9&angle=180
// cosine gradient palette — https://iquilezles.org/articles/palettes/
const float STEPS = 9.0;
const float ANGLE = 180.0;
vec3 palette(float t) {
vec3 a = vec3(0.552, 0.526, 0.378);
vec3 b = vec3(0.466, 0.571, 0.545);
vec3 c = vec3(0.928, 1.093, 1.011);
vec3 d = vec3(0.131, 0.356, 0.692);
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);
}
[
[0.552, 0.526, 0.378],
[0.466, 0.571, 0.545],
[0.928, 1.093, 1.011],
[0.131, 0.356, 0.692]
]