“FIESTA DE COLOR MULTI COLOR COLOR EN TODAS DIRECCIONES SÁBADO 26 SEPTIEMBRE · 16:00 H PLAZA DEL SOL ENTRADA LIBRE”是使用 FontVibe AI 创作的彩虹文字效果。绚丽的多彩虹色渐变文字特效，色彩过渡顺滑，棱镜般的光泽与欢快的多彩排版。

Create a finished vertical 3:4 Spanish event poster, print-ready, not a mockup. Exact rendered text, preserving accents and punctuation: Top small eyebrow: “FIESTA DE COLOR” Main headline, two centered lines: “MULTI” / “COLOR” Supporting line: “COLOR EN TODAS DIRECCIONES” Bottom event line: “SÁBADO 26 SEPTIEMBRE · 16:00 H” Bottom location: “PLAZA DEL SOL” Small circular seal: “ENTRADA LIBRE” Composition: headline occupies 62% of the canvas, centered from y=18 to y=68, with generous separation between the two lines. Use bold rounded custom display lettering with extreme spherical pneumatic inflation, wide proportions, tight even spacing, hemisphere terminals, ultra-glossy candy lacquer. Every single letter independently contains a complete vertical ROYGBIV gradient: red at its top, orange upper section, yellow and green through the middle, blue and indigo lower section, violet at the bottom. Do not spread one gradient across the word; each letter is a full rainbow. Add circular near-white specular highlights at the upper-right apex of every letter, soft contact shadows and subtle reflections on the lower curves. Place the eyebrow centered at y=8 in compact white uppercase sans-serif. Set the supporting line centered below the headline in dark cobalt blue. Place the date and location in two crisp centered lines near y=87; put the small white circular seal at lower-right. Scene: bright daytime outdoor color celebration, clean cyan sky fading to pale azure, warm sunlight from upper-right, soft golden lens flare, strings of small colored pennants, translucent balloon cluster at the lower left, scattered red-orange-yellow-green-blue-violet confetti around the headline without obscuring text. Add a small rounded color-splash podium beneath the lettering as the hero prop. High-chroma palette, polished 3D render, sharp readable typography, ample clean margins. Avoid dark backgrounds, muted colors, matte lettering, one-color-per-letter treatment, or extra text.