Free Online Color Converter — HEX, RGB, HSL
Convert colors between HEX, RGB, and HSL formats with HubKit's color converter. Pick a color visually or enter a value in any format to see the equivalent in all others. Essential for web designers, front-end developers, and anyone working with CSS color values.
How to Use
Enter a color value in HEX (#FF5733), RGB (rgb(255, 87, 51)), or HSL (hsl(11, 100%, 60%)) format. The tool instantly shows the color preview and equivalent values in all formats. Click any value to copy it.
Features
- Convert between HEX, RGB, and HSL color formats
- Live color preview swatch
- One-click copy for any format
- Real-time conversion as you type
Frequently Asked Questions
What is the difference between HEX, RGB, and HSL?
HEX uses a 6-digit hexadecimal code (#RRGGBB). RGB specifies red, green, and blue channels (0–255 each). HSL uses hue (0–360°), saturation (0–100%), and lightness (0–100%), which is more intuitive for color manipulation.
Which color format should I use in CSS?
All three formats are valid in CSS. HEX is the most compact. RGB is intuitive for color blending. HSL is best when you need to adjust brightness or saturation — changing the L value makes colors lighter or darker.
What does the alpha channel do?
The alpha channel controls transparency. RGBA and HSLA add a fourth value (0 to 1) where 0 is fully transparent and 1 is fully opaque. HEX supports alpha with an 8-digit code (#RRGGBBAA).