Color Brightness Calculator API

Color Brightness Calculator checks hex color brightness to classify values as light, dark, or medium, returning RGB components. Paid plans add WCAG contrast ratios, luminance scores, and recommended text colors.

The Color Brightness Calculator API provides a simple, reliable way to integrate color brightness calculator functionality into your applications. Built for developers who need production-ready color brightness calculator capabilities without the complexity of building from scratch.

View API Details →

Available on:

async function callColorBrightnessCalculatorAPI() {
    try {
        const params = new URLSearchParams({
            hex: 'FF5733'
        });

        const response = await fetch(`https://api.apiverve.com/v1/colorbrightness?${params}`, {
            method: 'GET',
            headers: {
                'x-api-key': 'YOUR_API_KEY_HERE'
            }
        });

        const data = await response.json();
        console.log(data);
    } catch (error) {
        console.error('Error:', error);
    }
}

callColorBrightnessCalculatorAPI();

curl -X GET "https://api.apiverve.com/v1/colorbrightness?hex=FF5733" \
  -H "x-api-key: YOUR_API_KEY_HERE"

Get your API key: https://apiverve.com

📁 For more examples, see the examples folder

Choose your preferred programming language:

npm install @apiverve/colorbrightness

View NPM Package → | Package Code →

dotnet add package APIVerve.API.ColorBrightnessCalculator

View NuGet Package → | Package Code →

pip install apiverve-colorbrightness

View PyPI Package → | Package Code →

gem install apiverve_colorbrightness

View RubyGems Package → | Package Code →

composer require apiverve/colorbrightness

View Packagist Package → | Package Code →

dart pub add apiverve_colorbrightness

View pub.dev Package → | Package Code →

implementation 'com.github.apiverve:colorbrightness-api:1.0.0'

Package Code →

go get github.com/apiverve/colorbrightness-api/go

Package Code →

• 🏠 API Home: Color Brightness Calculator API
• 📚 API Reference: docs.apiverve.com/ref/colorbrightness
• 📖 OpenAPI Spec: openapi.yaml
• 💡 Examples: examples/

The Color Brightness Calculator API is commonly used for:

• Web Applications - Add color brightness calculator features to your frontend or backend
• Mobile Apps - Native SDKs for Android development
• Automation - Integrate with n8n, Zapier, or custom workflows
• SaaS Products - Enhance your product with color brightness calculator capabilities
• Data Pipelines - Process and analyze data at scale

All requests require an API key in the header:

x-api-key: YOUR_API_KEY_HERE

Get your API key: https://apiverve.com

Every APIVerve endpoint returns the same envelope — check status, then read data:

{
  "status": "ok",
  "error": null,
  "data": { ... }
}

A real response from the Color Brightness Calculator API:

{
  "status": "ok",
  "error": null,
  "data": {
    "hex": "#FF5733",
    "rgb": {
      "r": 255,
      "g": 87,
      "b": 51
    },
    "luminance": 0.2832,
    "perceived_brightness": 131,
    "yiq": 133.13,
    "is_light": false,
    "is_dark": true,
    "brightness_category": "dark",
    "recommended_text_color": "#FFFFFF",
    "contrast_ratio_with_white": 3.15,
    "contrast_ratio_with_black": 6.66,
    "wcag_aa_compliant_with_white": false,
    "wcag_aa_compliant_with_black": true,
    "wcag_aaa_compliant_with_white": false,
    "wcag_aaa_compliant_with_black": false
  }
}

• 🏠 API Home: Color Brightness Calculator API
• 💬 Support: https://apiverve.com/contact
• 🐛 Issues: GitHub Issues
• 📖 Documentation: https://docs.apiverve.com
• 🌐 Website: https://apiverve.com

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

For security concerns, please review our Security Policy.

This project is licensed under the MIT License - see the LICENSE file for details.

Built with ❤️ by APIVerve

Copyright © 2026 APIVerve. All rights reserved.