/* https://grabient.com/_gHJgHVgDYgHsgHGgDggNhgMZgNWgKEgIPg1IiZ21oJgA?style=linearGradient&steps=7&angle=90 */ background: linear-gradient(90deg, #2a001b 0.000%, #78130c 16.667%, #ce480e 33.333%, #ff8d22 50.000%, #ffd543 66.667%, #ffff69 83.333%, #ffff8d 100.000%);

// https://grabient.com/_gHJgHVgDYgHsgHGgDggNhgMZgNWgKEgIPg1IiZ21oJgA?style=linearGradient&steps=7&angle=90 // 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(0.610, 0.622, 0.369); vec3 b = vec3(0.719, 0.663, 0.327); vec3 c = vec3(0.451, 0.413, 0.445); vec3 d = vec3(0.644, 0.527, 3.400); 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); }

Very dark purple to deep orange to pale yellow gradient palette editor

Very dark purple to deep orange to pale yellow