/* https://grabient.com/_f_4gFUhUtgPFgKbhVagC3gCPgBlgNngK4gHQ */
background: linear-gradient(90deg, #a81e18 0.000%, #c63700 16.667%, #de5000 33.333%, #ed6900 50.000%, #f4820f 66.667%, #f19a34 83.333%, #e6b167 100.000%);
<svg xmlns="http://www.w3.org/2000/svg" width="800" height="400" viewBox="0 0 800 400" preserveAspectRatio="none">
<!-- https://grabient.com/_f_4gFUhUtgPFgKbhVagC3gCPgBlgNngK4gHQ -->
<defs>
<linearGradient id="gradient" x1="0.000" y1="0.500" x2="1.000" y2="0.500">
<stop offset="0.000" stop-color="#a81e18" /><stop offset="0.167" stop-color="#c63700" /><stop offset="0.333" stop-color="#de5000" /><stop offset="0.500" stop-color="#ed6900" /><stop offset="0.667" stop-color="#f4820f" /><stop offset="0.833" stop-color="#f19a34" /><stop offset="1.000" stop-color="#e6b167" />
</linearGradient>
</defs>
<rect x="0" y="0" width="800" height="400" fill="url(#gradient)" />
</svg>
["#a81e18", "#c63700", "#de5000", "#ed6900", "#f4820f", "#f19a34", "#e6b167"]
// https://grabient.com/_f_4gFUhUtgPFgKbhVagC3gCPgBlgNngK4gHQ
// 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(-0.008, 0.340, 5.421);
vec3 b = vec3(0.965, 0.667, 5.466);
vec3 c = vec3(0.183, 0.143, 0.101);
vec3 d = vec3(0.871, 0.696, 0.464);
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);
}
[
[-0.008, 0.340, 5.421],
[0.965, 0.667, 5.466],
[0.183, 0.143, 0.101],
[0.871, 0.696, 0.464]
]