Abstract Gradient Card Designs - Rainbow & Grayscale Vector Templates #3308449 (License: Personal Use)

The top card showcases a vivid rainbow sunburst gradient radiating from a central white point, transitioning smoothly through magenta, red, orange, yellow, green, and cyan, with a bold black curved sidebar on the left. The bottom card mirrors this layout in grayscale, using subtle tonal shifts from black to white to create depth and dimension, maintaining the same dynamic radial composition and clean rounded corners.

Used as background templates for digital business cards, app onboarding screens, presentation slides, or website hero sections; targets designers and marketers seeking modern, scalable vector assets for branding or UI/UX projects.