/* https://grabient.com/_fupgITgCMghRgHFgHDgBigKTgIQgOagHZgLg?style=linearSwatches&steps=6&angle=0 */ background: linear-gradient(0deg, #c4161a 0.000%, #c4161a 16.667%, #df2c62 calc(16.667% + 1px), #df2c62 33.333%, #f47e90 calc(33.333% + 1px), #f47e90 50.000%, #ffd690 calc(50.000% + 1px), #ffd690 66.667%, #fffb62 calc(66.667% + 1px), #fffb62 83.333%, #ffd51a calc(83.333% + 1px) 100.000%);

// https://grabient.com/_fupgITgCMghRgHFgHDgBigKTgIQgOagHZgLg?style=linearSwatches&steps=6&angle=0 // cosine gradient palette — https://iquilezles.org/articles/palettes/ const float STEPS = 6.0; const float ANGLE = 0.0; vec3 palette(float t) { vec3 a = vec3(-1.111, 0.531, 0.140); vec3 b = vec3(2.129, 0.453, 0.451); vec3 c = vec3(0.098, 0.659, 0.528); vec3 d = vec3(0.922, 0.473, 0.736); 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 — #c4161a to #ffd51a