Color Converter & Palette Generator
Convert colors seamlessly across HEX, RGB, HSL, HSV, and CMYK formats. Inspect accessibility contrast ratios and explore shade variations in real time.
Converted Formats
WCAG Accessibility Contrast
Color Palette Variations (Tints & Shades)
Free Color Converter Online
Convert colors instantly between HEX, RGB, RGBA, HSL, HSV (HSB), and CMYK using this free online Color Converter. Whether you're designing a website, building a mobile app, or preparing assets for print, this tool helps you work with multiple color formats quickly and accurately.
In addition to color conversion, you can generate lighter and darker shades, check WCAG contrast ratios, and copy color values with a single click.
What Is a Color Converter?
A Color Converter transforms colors from one color model into another.
Different industries and software use different color systems:
- HEX is commonly used in HTML and CSS.
- RGB is used for digital displays.
- RGBA adds transparency.
- HSL makes adjusting color hue, saturation, and lightness easier.
- HSV (HSB) is widely used in design software.
- CMYK is the standard color model for printing.
Instead of converting colors manually, this tool performs accurate mathematical conversions instantly.
Supported Color Formats
HEX
HEX colors are the most common format for websites.
#3B82F6RGB
RGB represents colors using Red, Green, and Blue values.
rgb(59, 130, 246)RGBA
RGBA extends RGB by adding an alpha channel for transparency.
rgba(59, 130, 246, 0.5)HSL
HSL represents colors using Hue, Saturation, and Lightness for intuitive adjustments.
HSV (HSB)
HSV represents Hue, Saturation, and Value (Brightness), used widely in Photoshop and Figma.
CMYK
CMYK is primarily used for commercial printing and graphic design output.
Features
This Color Converter includes several useful tools for designers and developers.
- Convert HEX to RGB
- Convert RGB to HEX
- Convert HEX to HSL
- Convert HEX to HSV
- Convert HEX to CMYK
- Generate lighter and darker shades
- WCAG contrast checker
- Color palette generator
- Copy every format instantly
- Live color preview
- Client-side processing
- No registration required
Common Use Cases
Web Development
Convert designer color specifications into CSS-ready HEX or RGB values.
UI Design
Generate lighter and darker color variations for buttons, backgrounds, and hover states.
Brand Design
Create consistent color palettes for logos and marketing materials.
Accessibility Testing
Verify that text colors meet WCAG AA and AAA contrast requirements before publishing your website.
Print Design
Convert RGB colors into CMYK before exporting assets for professional printing.
Understanding Color Models
Each color model serves a different purpose.
| Color Model | Best For |
|---|---|
| HEX | HTML & CSS |
| RGB | Digital screens |
| RGBA | Transparent UI elements |
| HSL | UI color adjustments |
| HSV | Graphic design software |
| CMYK | Printing |
Choosing the correct color model depends on your project rather than one format being "better" than another.
Why Contrast Ratio Matters
Color contrast affects readability and accessibility.
According to the Web Content Accessibility Guidelines (WCAG), sufficient contrast helps users with visual impairments read text more comfortably.
This tool calculates contrast ratios against both white and black backgrounds and indicates whether the selected color passes WCAG AA or AAA standards.
Generate Color Variations
Finding matching colors manually can be difficult.
The built-in palette generator automatically creates:
- Tints (lighter colors)
- Shades (darker colors)
These variations are useful when designing buttons, cards, backgrounds, icons, and design systems.
Privacy
All calculations happen directly inside your browser.
No color values are uploaded or stored on our servers.
Frequently Asked Questions
How do I convert HEX to RGB?
Enter a HEX color such as #3B82F6 and the RGB value is calculated automatically.
Can I convert RGB to HEX?
Yes. The converter supports two-way conversion between all supported color formats.
What is the difference between HSL and HSV?
Both describe colors using Hue and Saturation. HSL uses Lightness, while HSV uses Value (Brightness). Designers often choose one or the other depending on the editing workflow.
Which color format should I use for CSS?
HEX and RGB are the most commonly used formats in CSS. RGBA is preferred when transparency is required.
Why do printers use CMYK instead of RGB?
RGB is designed for light emitted by screens, while CMYK represents the inks used by commercial printers.
Does this tool support accessibility testing?
Yes. It calculates contrast ratios and indicates whether your colors meet WCAG accessibility guidelines.
Is my color data uploaded?
No. Everything runs locally inside your browser.
Why Choose Olvo Hub?
Olvo Hub provides lightweight developer and design tools that prioritize speed, privacy, and simplicity.
Whether you're building websites, designing user interfaces, preparing print materials, or creating a design system, this Color Converter helps you convert color formats, generate palettes, and verify accessibility without installing additional software.