Blue Color System

Why Blue for your UI?

Blue is the most used color in UI design — and for good reason. It conveys trust, stability, and professionalism. From Facebook to Twitter to LinkedIn, blue dominates because it's universally appealing and easy on the eyes for extended screen time. A blue-based color system works for virtually any type of web application.

What you get

• 16 color tokens with semantic naming (--color-primary, --color-surface, --color-success, etc.)
• Dark mode + Light mode — generated automatically
• WCAG-compliant text contrast ratios
• Button states: primary, hover, disabled, accent
• CSS variables ready to paste into any project
• Works with Tailwind CSS, React, Vue, or plain HTML

FAQ

What colors pair well with blue?

Our generator automatically creates a complementary accent color (hue +120°), balanced text colors, and neutral backgrounds. The entire system is derived mathematically from the blue base to ensure harmony.

Is a blue color system good for dark mode?

Absolutely. Our generator creates optimized dark and light mode variants. In dark mode, the blue primary maintains vibrancy against dark backgrounds, with adjusted surface and text colors for readability.

Can I customize the blue palette after generating it?

Yes! The generated palette is a starting point. You can use our tool to pick any shade of blue as your base, and the entire system adapts. You get CSS variables that are easy to override.

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