Gradient Vibration Tester
Visualize gradients for colorblind and visually sensitive users
Test Gradient Accessibility in Real-Time
See how your gradients appear to users with different types of color vision and visual sensitivity.
Important Notice
This tool provides simulations based on established color vision deficiency models. While these simulations are scientifically informed, they cannot perfectly represent individual experiences. Always test with real users when possible.
Normal Vision
Original gradient
Protanopia Simulation
Red-green colorblindness
Gradient Vibration Tester
Enter your gradient colors to see how they appear under different vision simulations.
How It Works
Our tool uses established color vision deficiency models to simulate how gradients appear to different users.
Input Your Gradient
Enter the start and end colors of your gradient using hex color codes or the color picker.
Run Simulations
Our algorithm processes your colors through different color vision deficiency models.
Analyze Results
Compare the original gradient with simulations to identify potential accessibility issues.
Types of Vision Simulated
Protanopia
Red-green colorblindness where red appears darker. Affects approximately 1% of males.
Deuteranopia
Another form of red-green colorblindness. Affects about 1% of males.
Tritanopia
Blue-yellow colorblindness. Less common, affecting about 0.01% of population.
High Sensitivity Mode
Simulates how gradients might appear to users with visual sensitivity or migraine triggers.
Why Use Gradient Vibration Tester?
Create inclusive designs that work for everyone, regardless of their visual abilities.
Accessibility Testing
Ensure your gradients are perceivable by users with different types of color vision.
Design Verification
Verify that your color choices maintain sufficient contrast and clarity.
Inclusive UI
Create interfaces that work for the 8% of men and 0.5% of women with color vision deficiencies.
Visual Safety
Identify gradients that might cause discomfort or trigger photosensitivity.
Free & Easy
No cost, no registration needed. Test gradients directly in your browser.
Real-Time Results
See simulations instantly as you adjust colors. No waiting for processing.
How to Use Gradient Vibration Tester: Complete Guide
Getting Started
Welcome to the Gradient Vibration Tester! This comprehensive guide will walk you through every aspect of using our tool to create accessible gradients. Whether you're a seasoned designer or just starting out, you'll find valuable insights here.
Understanding the Interface
The tool interface is divided into three main sections:
- Input Section: Where you enter your gradient colors
- Control Buttons: To test, generate random gradients, or clear results
- Results Panel: Where simulations and CSS code appear
Step-by-Step Testing Process
1. Entering Your Colors
You can input colors in two ways:
- Type the hex code directly (format: #RRGGBB)
- Use the color picker by clicking on the colored box
Tip: When testing gradients for accessibility, start with colors that have sufficient contrast in their normal state. A good rule of thumb is to ensure at least 4.5:1 contrast ratio for normal text.
2. Running the Test
Click "Test Gradient Vibration" to process your colors through our simulation models. The tool will:
- Validate your color inputs
- Generate the original gradient
- Create simulations for different vision types
- Display side-by-side comparisons
3. Interpreting Results
Each simulation shows how your gradient might appear to users with specific visual characteristics:
- Normal Vision: Your original gradient as most users see it
- Protanopia/Deuteranopia: Red-green colorblind simulations
- Tritanopia: Blue-yellow colorblind simulation
- High Sensitivity: Simulated view for visually sensitive users
Warning: Pay special attention to simulations where the gradient appears flat or where distinct colors become indistinguishable. These indicate potential accessibility issues.
Practical Applications
For Website Design
When designing website backgrounds, buttons, or decorative elements with gradients:
- Test all gradient combinations used in your design system
- Ensure text remains readable when placed over gradient backgrounds
- Check that interactive elements (buttons, links) maintain visual distinction
For Mobile Apps
Mobile interfaces often use gradients for depth and visual interest. Test for:
- Readability in different lighting conditions
- Visual comfort during extended use
- Distinction between interactive and static elements
For Data Visualizations
Gradients in charts and graphs must convey information accurately:
- Test sequential color scales for heatmaps
- Verify that diverging gradients maintain their midpoint significance
- Ensure categorical colors remain distinct
Advanced Tips
Color Selection Strategies
When creating accessible gradients:
- Use HSL/HSV adjustments: Adjust lightness rather than just hue for better accessibility
- Incorporate texture: Add subtle patterns to gradients to aid distinction
- Test multiple angles: Check linear gradients at 0°, 45°, and 90° angles
Common Mistakes to Avoid
Based on our analysis of thousands of gradients, avoid these pitfalls:
- Using colors that are too similar in lightness
- Creating gradients with high-frequency color changes
- Relying solely on color to convey information
- Ignoring the needs of tritanopia users (less common but important)
Interpreting Simulation Results
When analyzing your test results:
- Look for flattening: If a gradient appears as a single color, increase contrast
- Check for vibration: High-contrast edges that might cause discomfort
- Verify information retention: Ensure the gradient's purpose remains clear
Workflow Integration
Incorporate gradient testing into your design workflow:
- Test gradients during the design phase, not after implementation
- Create a library of pre-tested accessible gradients
- Use the generated CSS code directly in your projects
- Document which gradients work well for different use cases
Beyond Color Vision
Remember that accessibility extends beyond color vision:
- Consider users with low vision who might use high contrast modes
- Account for users with visual processing disorders
- Test on different devices and screen types
- Consider environmental factors like screen glare
Pro Tip: The "High Sensitivity Mode" simulation is particularly useful for identifying gradients that might trigger migraines or visual discomfort in users with conditions like Irlen Syndrome or photosensitive epilepsy.
Exporting and Implementation
Once you've created an accessible gradient:
- Copy the generated CSS code
- Test the gradient in its actual implementation context
- Verify performance (large gradients can impact page load)
- Document the gradient's accessibility characteristics
By following this comprehensive guide, you'll be able to create beautiful, functional gradients that work for all users. Remember that accessibility testing is an ongoing process, and user feedback is invaluable.
Frequently Asked Questions
Find answers to common questions about Gradient Vibration Tester.
Our simulations are based on established color vision deficiency models used in accessibility research. While they provide good approximations of how colors are perceived, individual experiences may vary. The simulations are intended as design aids, not medical diagnostics.
Currently, the tool focuses on linear gradients. However, the color perception simulations apply equally to other gradient types. You can test the color combinations used in any gradient type using our tool.
No. All processing happens locally in your browser. We don't store your color choices, gradients, or test results. This ensures complete privacy and security for your design work.
The tool works on all modern browsers including Chrome, Firefox, Safari, and Edge. JavaScript must be enabled. For best results, use the latest browser version available.
Yes! Gradient Vibration Tester is completely free for both personal and commercial use. You can use the tested gradients and generated CSS code in any project without attribution.
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