/* https://grabient.com/_gJTgFFgAsgGvgTwgBRgFxgBhgYkgLDgK3gKz */
background: linear-gradient(90deg, #7a0004 0.000%, #a4051f 16.667%, #cd2510 33.333%, #ed4600 50.000%, #ff660a 66.667%, #ff8720 83.333%, #f9a70a 100.000%);
<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
<!-- https://grabient.com/_gJTgFFgAsgGvgTwgBRgFxgBhgYkgLDgK3gKz -->
<defs>
<linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
<stop offset="0.000" stop-color="#7a0004" /><stop offset="0.167" stop-color="#a4051f" /><stop offset="0.333" stop-color="#cd2510" /><stop offset="0.500" stop-color="#ed4600" /><stop offset="0.667" stop-color="#ff660a" /><stop offset="0.833" stop-color="#ff8720" /><stop offset="1.000" stop-color="#f9a70a" />
</linearGradient>
</defs>
<rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
</svg>
["#7a0004", "#a4051f", "#cd2510", "#ed4600", "#ff660a", "#ff8720", "#f9a70a"]
// https://grabient.com/_gJTgFFgAsgGvgTwgBRgFxgBhgYkgLDgK3gKz
// 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(0.595, 0.325, 0.044);
vec3 b = vec3(0.431, 1.264, 0.081);
vec3 c = vec3(0.369, 0.097, 1.572);
vec3 d = vec3(0.707, 0.695, 0.691);
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);
}
[
[0.595, 0.325, 0.044],
[0.431, 1.264, 0.081],
[0.369, 0.097, 1.572],
[0.707, 0.695, 0.691]
]