Free Pixel Art Color Ramp Generator & Hue Shifter—
gemini-3.0-flash
gemini-3.0-flashGenerate professional pixel art palettes with our free color ramp generator. Shift hues, adjust saturation, and export game asset color ramps instantly.
AI Generation Prompt
Pixel Art Color Ramp & Hue Shifting Tool
A professional-grade, single-file browser utility designed for game developers and pixel artists to generate, refine, and export custom color ramps.
Core Technical Features
- HSL-Based Ramp Generation: Dynamically create color ramps based on a single base color using incremental HSL (Hue, Saturation, Lightness) offsets.
- Advanced Control Panels: Individual controls for Hue-Shift per step, Saturation variation per step, and Lightness curves.
- Interactive Preview Grid: A live-updating swatch grid that displays the generated ramp, allowing users to see the color harmony in real-time.
- Export Formats: One-click copying for CSS Variables, HEX lists, and JSON configuration objects.
- Randomized Palette Seeds: An "Inspire Me" button that generates mathematically harmonious base colors and ramp settings for quick experimentation.
- Accessibility Overlay: A real-time contrast ratio calculator to ensure the foreground and background colors in the ramp adhere to accessibility standards.
UI/UX Layout
- Header: Contains the tool name and a brief instruction toggle for new users.
- Main Tool Area: A split-screen layout.
- Left Sidebar: Contains the control knobs (sliders for steps, HSL offsets, and base color picker).
- Right Panel: The primary workspace showing the color swatches with copy-to-clipboard functionality on each card.
- Bottom Section: A dedicated code-output box that dynamically updates whenever a slider is moved, displaying the CSS/JSON representation.
Aesthetic Specification
- Theme: Clean, professional "SaaS" light mode.
- Palette: Use a neutral gray-scale background (#F8FAFC) for the body, with crisp white containers (#FFFFFF) elevated by subtle drop-shadows (shadow-md).
- Accents: Use a soft, modern indigo (#4F46E5) for buttons and active states.
- Animations:
- Use CSS
transition: all 0.2s ease-in-outfor all interactive elements. - Smooth fade-in animations for swatch cards upon generation.
- Subtle hover-scale effects (1.02x) on color swatches to encourage interaction.
- Use CSS
Technical Constraints
- No Local Storage: All calculations must be handled in-memory. State is reset upon refresh.
- Vanilla Architecture: No build steps. All CSS, HTML, and JS must reside in one file. CDN links (Tailwind CSS, FontAwesome) are permitted.
- Sandboxed Compatibility:
- Avoid
alert()orprompt(). Use custom modal components that render within the document flow. - All links must use
target="_blank"andrel="noopener noreferrer".
- Avoid
- Responsive Design: The sidebar must collapse into a top-bar component on screens smaller than 768px, ensuring the color ramp remains visible.
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Frequently Asked Questions
Everything you need to know about using this application.
How does color ramping help in pixel art?
Color ramping is essential for creating depth in pixel art by transitioning from light to shadow. It provides a consistent structure to your lighting model, ensuring that highlights and shadows feel cohesive rather than disjointed. This tool automates the process by calculating the mathematical progression of lightness and saturation, while applying manual hue shifts to mimic the complexities of natural lighting found in professional digital art.
Can I export my generated palettes?
Yes, the tool allows you to copy hex codes individually or export the entire palette as a CSS variable sheet or a raw JSON array. This ensures that you can easily plug the generated ramp directly into your game engine or design software. Since this application does not use server-side storage or cookies for security reasons, please ensure you copy your generated code to your clipboard or download your file before closing the browser tab.
How is hue shifting used in this tool?
Hue shifting prevents flat-looking pixel art by subtly changing the color tone as the ramp transitions into shadows. By moving the hue slightly towards a warmer or cooler tone, you add professional complexity and visual interest that simple brightness adjustments cannot achieve. This app provides fine-grained control over the hue, saturation, and lightness (HSL) offset per step, allowing you to fine-tune the ramp specifically for various materials like fabric, stone, or metallic surfaces.
Is this tool mobile-friendly?
This application is built with a responsive, web-first design that adjusts gracefully to screens of all sizes. The layout reconfigures itself to ensure the color picker and ramp controls remain accessible on mobile devices, tablets, and desktop workstations. You can effectively use this tool to prototype game palettes on a mobile device while away from your primary workstation, then simply copy the output code for use in your desktop project.
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