/* https://grabient.com/_gDAgBGfcGgBDgBYgmIgRRgWOgBogKcgNIgOt?style=linearSwatches&steps=7&angle=45 */ background: linear-gradient(45deg, #291e00 0.000%, #291e00 14.286%, #3b260f calc(14.286% + 1px), #3b260f 28.571%, #42091d calc(28.571% + 1px), #42091d 42.857%, #340024 calc(42.857% + 1px), #340024 57.143%, #231723 calc(57.143% + 1px), #231723 71.429%, #22281b calc(71.429% + 1px), #22281b 85.714%, #33100c calc(85.714% + 1px) 100.000%);

// https://grabient.com/_gDAgBGfcGgBDgBYgmIgRRgWOgBogKcgNIgOt?style=linearSwatches&steps=7&angle=45 // cosine gradient palette — https://iquilezles.org/articles/palettes/ const float STEPS = 7.0; const float ANGLE = 45.0; vec3 palette(float t) { vec3 a = vec3(0.192, 0.070, -2.298); vec3 b = vec3(0.067, 0.088, 2.440); vec3 c = vec3(1.105, 1.422, 0.104); vec3 d = vec3(0.668, 0.840, 0.941); 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 — #291e00 to #33100c