/* https://grabient.com/_fFoemPgAAhKRhnPgAAgBhgBggBlgOGgOVgAA?style=linearSwatches&steps=5&angle=45 */ background: linear-gradient(45deg, #250000 0.000%, #250000 20.000%, #846900 calc(20.000% + 1px), #846900 40.000%, #c9b300 calc(40.000% + 1px), #c9b300 60.000%, #f4d800 calc(60.000% + 1px), #f4d800 80.000%, #ffd600 calc(80.000% + 1px) 100.000%);

// https://grabient.com/_fFoemPgAAhKRhnPgAAgBhgBggBlgOGgOVgAA?style=linearSwatches&steps=5&angle=45 // cosine gradient palette — https://iquilezles.org/articles/palettes/ const float STEPS = 5.0; const float ANGLE = 45.0; vec3 palette(float t) { vec3 a = vec3(-3.736, -5.745, 0.000); vec3 b = vec3(4.753, 6.607, 0.000); vec3 c = vec3(0.097, 0.096, 0.101); vec3 d = vec3(0.902, 0.917, 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; // 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); }

Gradient palette editor — #250000 to #ffd600