/* https://grabient.com/_gE3gENgFdgBYgBcgBUgIqgHZgHlgJCgMfgNX?style=linearSwatches&steps=13&angle=90 */ background: linear-gradient(90deg, #3c4c66 0.000%, #3c4c66 7.692%, #3f516a calc(7.692% + 1px), #3f516a 15.385%, #45556d calc(15.385% + 1px), #45556d 23.077%, #4b596e calc(23.077% + 1px), #4b596e 30.769%, #515b6e calc(30.769% + 1px), #515b6e 38.462%, #575c6d calc(38.462% + 1px), #575c6d 46.154%, #5d5b6b calc(46.154% + 1px), #5d5b6b 53.846%, #625a67 calc(53.846% + 1px), #625a67 61.538%, #655662 calc(61.538% + 1px), #655662 69.231%, #66525d calc(69.231% + 1px), #66525d 76.923%, #654d58 calc(76.923% + 1px), #654d58 84.615%, #634752 calc(84.615% + 1px), #634752 92.308%, #5e414e calc(92.308% + 1px) 100.000%);

// https://grabient.com/_gE3gENgFdgBYgBcgBUgIqgHZgHlgJCgMfgNX?style=linearSwatches&steps=13&angle=90 // cosine gradient palette — https://iquilezles.org/articles/palettes/ const float STEPS = 13.0; const float ANGLE = 90.0; vec3 palette(float t) { vec3 a = vec3(0.311, 0.269, 0.349); vec3 b = vec3(0.088, 0.092, 0.084); vec3 c = vec3(0.554, 0.473, 0.485); vec3 d = vec3(0.578, 0.799, 0.855); 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); }

Duotone dark gray blue and dirty purple gradient palette editor

Duotone dark gray blue and dirty purple