Generate custom color palettes with shades from 50 to 950 instantly. Perfect for web design, UI development, and CSS color system generation. Fast and free.
AI Generation Prompt
CSS Color Palette Generator Specification
Overview
A high-performance, browser-based utility designed to help web developers and designers create consistent color scales ranging from 50 to 950. This tool provides instant, visual feedback and multiple code export options.
Core Features
- Dynamic Shade Calculation: Automatically generate a 10-step scale (50-950) based on a single input hex code.
- Live Preview: A visual grid displaying the generated colors with their respective shade labels.
- Accessibility Checker: Real-time contrast ratio estimation for text overlaid on each color block.
- One-Click Export: Copy output to clipboard in multiple formats:
- CSS Variables (
--color-50,--color-100, etc.) - Tailwind CSS
tailwind.config.jsformat - Plain JSON array
- CSS Variables (
- Smart Clipboard: Click any individual swatch to copy the Hex value immediately.
User Interface Layout
- Header: Clean, minimalist title and a brief description.
- Control Panel: A centered input area containing a color picker and text input field, plus simple range sliders for saturation and lightness adjustments.
- Main Display: A responsive CSS grid displaying the 10 color swatches. Each swatch displays the shade label (e.g., "500"), the hex code, and a contrast accessibility score.
- Export Section: A persistent bottom tab or menu that allows selecting the desired export format, with a "Copy All" code block section.
Visual Design & Aesthetics
- Color Palette: Professional light-mode aesthetic. Use slate grays for text, white for backgrounds, and distinct, clean borders. Avoid pure black.
- Typography: Sans-serif system font stack (Inter or system-ui) for high readability.
- Micro-interactions:
- Smooth fade-in animations for swatches when a new base color is selected.
- Subtle hover scaling effect on swatches.
- Click-to-copy toast notification (custom UI, not browser alert).
Developer Constraints & Requirements
- Architecture: Single-file HTML/CSS/JS. All styles and logic must be embedded.
- Environment: Must run perfectly within a sandboxed iframe.
- No Storage: No use of
localStorage,sessionStorage, or cookies. The state must be maintained in memory. - No Popups: Do not use
alert(),confirm(), orprompt(). All user notifications must be handled by custom HTML/CSS overlays. - Performance: JavaScript must be lightweight, utilizing simple HSL/RGB conversion logic to generate shades without heavy external libraries.
- Responsiveness: Grid must wrap naturally from single-column on mobile to multiple columns on larger screens.
Spread the word
Files being used
Frequently Asked Questions
Everything you need to know about using this application.
How does this CSS color palette generator work?
This tool takes a base hex color and algorithmically calculates a range of 10 shades (50 to 950) by adjusting lightness and saturation values to ensure consistent visual harmony.
Can I copy the generated colors for production use?
Yes. You can export the generated palette in multiple formats, including standard CSS variables, JSON, or Tailwind CSS configuration format for immediate integration into your projects.
Is this tool mobile-friendly?
Yes, the interface is fully responsive, allowing you to generate and copy color palettes on any device, whether you are on a desktop or working on the go.
