/* https://grabient.com/_gKthCSgAAgOrhCugAAgCogBlgBogKHgHOgAA?style=linearSwatches&steps=5&angle=45 */ background: linear-gradient(45deg, #1e1800 0.000%, #1e1800 20.000%, #550000 calc(20.000% + 1px), #550000 40.000%, #920000 calc(40.000% + 1px), #920000 60.000%, #d11700 calc(60.000% + 1px), #d11700 80.000%, #ff4d00 calc(80.000% + 1px) 100.000%);

// https://grabient.com/_gKthCSgAAgOrhCugAAgCogBlgBogKHgHOgAA?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(0.685, 4.242, 0.000); vec3 b = vec3(0.939, 4.270, 0.000); vec3 c = vec3(0.168, 0.101, 0.104); vec3 d = vec3(0.647, 0.462, 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 — #1e1800 to #ff4d00