/* https://grabient.com/_gKAdPjdPjgF0jBQjBQgHegBhgBmgIJgOXgPa?style=linearSwatches&steps=6&angle=45 */ background: linear-gradient(45deg, #4500ff 0.000%, #4500ff 16.667%, #5d29ff calc(16.667% + 1px), #5d29ff 33.333%, #8da4e6 calc(33.333% + 1px), #8da4e6 50.000%, #c5f288 calc(50.000% + 1px), #c5f288 66.667%, #f1ff00 calc(66.667% + 1px), #f1ff00 83.333%, #ffff00 calc(83.333% + 1px) 100.000%);

// https://grabient.com/_gKAdPjdPjgF0jBQjBQgHegBhgBmgIJgOXgPa?style=linearSwatches&steps=6&angle=45 // cosine gradient palette — https://iquilezles.org/articles/palettes/ const float STEPS = 6.0; const float ANGLE = 45.0; vec3 palette(float t) { vec3 a = vec3(0.640, -11.293, -11.293); vec3 b = vec3(0.372, 12.368, 12.368); vec3 c = vec3(0.478, 0.097, 0.102); vec3 d = vec3(0.521, 0.919, 0.986); 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 — #4500ff to #ffff00