UI Color Palette Generator with Real-Time Web & Mobile Preview
UIXcolors is a professional UI color palette generator designed for designers and developers who need to create accessible, production-ready color schemes. Unlike traditional palette generators that only show color swatches, UIXcolors provides real-time preview on actual interface components across both desktop and mobile layouts, ensuring your colors work perfectly in real-world applications.
Generate semantic UI colors including background, surface, text, primary, secondary, and accent with built-in WCAG contrast checking. The tool supports light and dark themes, typography pairing with Google Fonts, and exports as CSS variables and JSON design tokens ready for your design system workflow.
Preview UI Colors on Real Layouts (Not Just Swatches)
Traditional color palette generators show you swatches in a grid, forcing you to imagine how they work together in a real interface. UIXcolors takes a different approach by rendering your color palette on realistic UI components including navigation bars, cards, buttons, forms, tables, and badges. This allows you to make informed decisions about background, surface, and text colors by seeing them in context.
Desktop UI Preview
The desktop preview displays a full dashboard layout with hero sections, statistics cards, alerts, and data tables. As you adjust colors in real-time, all components update instantly, helping you choose the perfect balance between background, surface, text, and primary colors for desktop web applications.
Mobile Preview Inside the Same Workspace
The mobile preview appears in a realistic device frame with scrollable viewport, allowing you to see how your UI color palette responds to smaller screens. The preview includes mobile-optimized components and navigation, ensuring your color choices work across all devices without switching tools or screens.
Generate Accessible Color Palettes with WCAG Contrast Built In
Accessibility is critical for modern web applications. UIXcolors includes a comprehensive WCAG 2.1 contrast checker that evaluates all important color combinations in your palette, showing contrast ratios and AA/AAA compliance badges for text-on-background, text-on-surface, and button text-on-primary pairs. This prevents accessibility mistakes before you ship your design.
WCAG Contrast Checker for Text and Buttons
The built-in contrast checker automatically calculates ratios for critical UI elements including body text on background, text on surface/cards, button text on primary color, and badge text on accent colors. You get instant feedback on whether each combination meets WCAG AA (4.5:1) or AAA (7:1) standards.
Light and Dark Theme Palettes
Modern applications require both light and dark themes. UIXcolors lets you design and preview separate palettes for each theme, with automatic mode support via prefers-color-scheme. The contrast checker validates both themes independently, ensuring readability in all viewing conditions.
Typography Pairing That Matches Your UI Colors
Typography significantly impacts how users perceive your color palette. UIXcolors integrates typography pairing directly into the color generation workflow, allowing you to choose UI fonts and display fonts from a curated list of Google Fonts or upload your own local fonts. The preview updates in real-time to show how typefaces interact with your chosen colors.
Google Fonts UI + Display Pairing
Choose from carefully curated Google Fonts combinations including Inter, Roboto, DM Sans for UI, paired with Playfair Display, Merriweather, or Space Mono for headings. The tool automatically loads multiple font weights and uses font-display: swap for optimal performance in production.
Use Your Own Local Fonts
Upload custom .woff2 font files to preview your brand fonts with your color palette. Local fonts load instantly in the preview without external requests, ensuring privacy and giving you complete control over your design system typography.
Smart Randomize: Trendy Palettes That Look Professional
The Smart Randomize feature generates curated color palettes based on modern design guidelines and industry best practices. Unlike random color generators that produce chaotic results, Smart Randomize uses scenario-based algorithms that create palettes similar to Apple Human Interface Guidelines and Material Design, ensuring professional-looking results every time.
Clean White UI (Apple-like) Palettes
The most common scenario generates clean, modern palettes with near-white backgrounds (OKLCH lightness 0.97-0.99) and subtle surface colors, creating the minimalist aesthetic popular in contemporary product design and SaaS applications.
Brand-Focused and Dark UI Variations
Smart Randomize also generates brand-forward palettes with prominent primary colors and sophisticated dark UI palettes with proper contrast and semantic color relationships, giving you variety while maintaining consistent quality and accessibility.
Export UI Colors as CSS Variables and Design Tokens
UIXcolors generates production-ready code and design tokens you can paste directly into your projects. The export includes semantic token names, proper light/dark theme structure, and formats compatible with modern frameworks and design system tooling.
Copy CSS Variables (Light/Dark + Auto)
Export includes :root variables for light theme, [data-theme="dark"] selectors for dark theme, and @media (prefers-color-scheme: dark) for automatic theme switching. The CSS is ready to use in any web project with no modifications needed.
Download JSON Tokens for Design Systems
Export structured JSON design tokens including light and dark color palettes, UI style tokens (border radii, shadows, borders), and typography tokens (font families, weights, sizes). This format works with Style Dictionary, design system plugins, and Figma token sync tools.
Who Is This UI Color Tool For?
- UI/UX designers creating color palettes for web and mobile applications with real-time preview and accessibility validation
- Product designers building design systems and need semantic color tokens with light and dark theme support
- Frontend developers implementing color schemes and want production-ready CSS variables and JSON tokens
- Design system teams maintaining consistent UI colors across multiple products and platforms with proper documentation
- Agencies and startups who need to rapidly prototype and validate color palettes that meet modern design standards
UIXcolors helps teams ship consistent, accessible UI faster by combining palette generation, real-time preview, accessibility checking, and production-ready code export in a single workflow.
FAQ: UI Colors, WCAG, and Design Tokens
What is a UI color palette generator?
A UI color palette generator creates cohesive color schemes specifically for user interfaces. Unlike basic palette generators that create pretty swatches, UI palette generators focus on semantic colors like background, surface, text, and primary colors that work together in real interfaces. UIXcolors generates palettes optimized for web and mobile applications with proper contrast and accessibility.
How is this different from other color palette generators?
UIXcolors provides real-time preview on actual interface layouts, simultaneous desktop and mobile previews, WCAG contrast checking, typography pairing with Google Fonts, and exports as CSS variables and JSON design tokens. You see exactly how colors work in real components like buttons, cards, and forms, not just abstract swatches in a grid.
Can I preview colors on a real website layout?
Yes, UIXcolors shows your colors applied to realistic UI components including navigation bars, hero sections, statistics cards, forms, tables, alerts, and badges. Both desktop dashboard and mobile layouts update in real-time as you adjust colors, eliminating guesswork about how your palette works in production.
Does this tool support WCAG accessibility?
Yes, UIXcolors includes a built-in WCAG contrast checker that displays contrast ratios and AA/AAA compliance badges for critical color pairs like text-on-background, text-on-surface, and button text on primary colors. This ensures your palette meets WCAG 2.1 accessibility standards before implementation.
Can I generate colors for light and dark themes?
Yes, UIXcolors supports both light and dark themes with automatic mode detection using prefers-color-scheme media query. All color tokens are exported with proper light and dark theme structure, ensuring consistent design systems across both viewing modes with independent contrast validation.
Can I export UI colors as CSS variables?
Yes, you can copy production-ready CSS code with :root variables for light theme, [data-theme='dark'] selectors for dark theme, and @media (prefers-color-scheme: dark) for automatic theme switching. The CSS includes semantic names like --background, --surface, --text, --primary and is ready to paste into your project.
Can I export design tokens as JSON?
Yes, UIXcolors exports structured JSON design tokens including light and dark color palettes, UI style tokens (border radii, shadows, border widths), and typography tokens (font families, weights, sizes). This format works with design system tooling, Style Dictionary, and Figma token sync plugins.
Can I use Google Fonts or my own fonts?
Yes, UIXcolors includes curated Google Fonts for UI and display typography with multiple weights and instant preview in your color palette. You can also upload local .woff2 font files for complete control over your brand typography without external dependencies or privacy concerns.
Is this tool useful for design systems?
Yes, UIXcolors uses semantic token naming conventions, generates consistent palettes following modern design guidelines, includes comprehensive WCAG compliance checking, and exports in formats compatible with design system workflows. It's perfect for maintaining consistent UI colors across multiple products and platforms.