/* https://grabient.com/_e4CgAAgHHhYSgAAgI5gBmgBogHcgN8gAAgOf?style=linearSwatches&steps=6&angle=45 */ background: linear-gradient(45deg, #0000f6 0.000%, #0000f6 16.667%, #3500ff calc(16.667% + 1px), #3500ff 33.333%, #8c00df calc(33.333% + 1px), #8c00df 50.000%, #cc0096 calc(50.000% + 1px), #cc0096 66.667%, #f60040 calc(66.667% + 1px), #f60040 83.333%, #ff0000 calc(83.333% + 1px) 100.000%);

// https://grabient.com/_e4CgAAgHHhYSgAAgI5gBmgBogHcgN8gAAgOf?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(-4.606, 0.000, 0.455); vec3 b = vec3(5.650, 0.000, 0.569); vec3 c = vec3(0.102, 0.104, 0.476); vec3 d = vec3(0.892, 0.000, 0.927); 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); }

Neon strong blue to dark violet to red gradient palette editor

Neon strong blue to dark violet to red