A color converter online lets designers and developers switch instantly between HEX, RGB, and HSL color formats - with a live visual preview confirming the exact color at every step.
What are HEX, RGB, and HSL?
HEX (Hexadecimal) - The format most used in CSS and design tools. A hash followed by six hex digits: #FF5733. Each pair of digits represents the red, green, and blue channels from 0 (00) to 255 (FF).
RGB (Red, Green, Blue) - Defines a color by its red, green, and blue components as decimal values from 0 to 255: rgb(255, 87, 51). Familiar to developers and easy to manipulate programmatically.
HSL (Hue, Saturation, Lightness) - A more human-intuitive format: hue is an angle from 0 to 360 degrees on the color wheel, saturation and lightness are percentages: hsl(11, 100%, 60%). Adjusting lightness to create tints and shades is much simpler in HSL than in RGB or HEX.
How to Use the Color Converter
- Open the Color Converter on UtilWave.
- Type a color in any format -
#FF5733,rgb(255, 87, 51), orhsl(11, 100%, 60%). - The other two formats update instantly.
- A color swatch shows a live preview of the exact color.
- Click any format's Copy button to grab the value for your code.
Conversion Quick Reference
| Format | Example | Use Case |
|---|---|---|
| HEX | #3498DB | CSS properties, design tools |
| RGB | rgb(52, 152, 219) | CSS, canvas drawing, image processing |
| HSL | hsl(204, 70%, 53%) | CSS animations, theming, color palettes |
| RGBA | rgba(52, 152, 219, 0.8) | CSS with transparency |
Common Use Cases
Design-to-code handoff - Design tools like Figma output HEX or RGB. Convert to HSL when building a CSS theming system where you need to vary lightness.
Color palette generation - Pick a base color in HSL, then create tints (increase lightness) and shades (decrease lightness) systematically.
Dark mode theming - HSL makes it easy to create dark mode variants by swapping lightness values.
Accessibility checks - Converting to RGB helps when running contrast ratio calculations for WCAG compliance.
Tips for Working with HSL
- Keep saturation between 60–80% for vivid but not garish colors.
- Use lightness to create consistent tint/shade scales: 90% is a very light tint, 20% is a deep shade.
- Colors on the same hue with different lightness values form a natural palette.
FAQ
What is the difference between HEX and HEX with alpha (HEX8)?
Standard HEX is 6 digits. An 8-digit HEX (#FF573380) adds an alpha (transparency) channel as the last two digits.
Does the tool support RGBA and HSLA?
The converter handles RGB and HSL. For RGBA/HSLA, add the alpha channel to the CSS value after conversion (e.g., rgba(255, 87, 51, 0.5)).
Why does hsl(0, 0%, 100%) look the same as #FFFFFF?
They are the same color - white. HSL hue and saturation are irrelevant when lightness is 100% (white) or 0% (black).
How do I find the complementary color? In HSL, the complementary color has a hue shifted by 180 degrees. Convert your color to HSL, add 180 to the hue, and convert back.
Convert any color format instantly with the free Color Converter.