/* https://grabient.com/_fqogslg0gggGgsxgzYgBjgBhgBkgNugHhgHi?style=linearSwatches&steps=5&angle=45 */ background: linear-gradient(45deg, #1c0218 0.000%, #1c0218 20.000%, #500013 calc(20.000% + 1px), #500013 40.000%, #7a0923 calc(40.000% + 1px), #7a0923 60.000%, #982648 calc(60.000% + 1px), #982648 80.000%, #a9537f calc(80.000% + 1px) 100.000%);

// https://grabient.com/_fqogslg0gggGgsxgzYgBjgBhgBkgNugHhgHi?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(-1.368, 2.853, 3.360); vec3 b = vec3(2.054, 2.865, 3.288); vec3 c = vec3(0.099, 0.097, 0.100); vec3 d = vec3(0.878, 0.481, 0.482); 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 — #1c0218 to #a9537f