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RGB to HEX Converter

Convert RGB to HEX instantly — perfect for web design, CSS and graphics work.

Input
#3b5bfd
Output
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About the RGB to HEX Converter

The RGB to HEX Converter translates color values from RGB (Red, Green, Blue) format—where each color channel uses decimal values from 0 to 255—into hexadecimal notation (#RRGGBB format) used in web design, CSS, and digital graphics. RGB is the standard color model for screens and digital displays, while hexadecimal notation is the standard for HTML, CSS, and web applications. This free browser-based tool converts between these two formats instantly with no installation, signup, or data upload required, making it essential for designers, developers, and anyone working with web colors.

How RGB to HEX works

RGB colors specify intensity levels for red, green, and blue light channels, each ranging from 0 (no light) to 255 (maximum light). Hexadecimal notation compresses these three decimal values into a six-character code, where each pair of characters represents one color channel in base-16 format.

Conversion Process:

  1. Take the red decimal value (0-255) and convert it to two hexadecimal digits
  2. Take the green decimal value (0-255) and convert it to two hexadecimal digits
  3. Take the blue decimal value (0-255) and convert it to two hexadecimal digits
  4. Concatenate all three pairs with a hash symbol (#) to create the final color code

Worked Example:

Converting the color RGB(100, 150, 200) to hexadecimal:

  • Red: 100 in decimal = 64 in hexadecimal
  • Green: 150 in decimal = 96 in hexadecimal
  • Blue: 200 in decimal = C8 in hexadecimal
  • Result: #6496C8

To verify: You can use this hex code directly in CSS as color: #6496C8; or background-color: #6496C8;, and it will render the exact same blue-tinted color as RGB(100, 150, 200).

How to use

  1. Enter your color value (for example #3b5bfd or rgb(59, 91, 253)).
  2. The converted color appears instantly.
  3. Copy the result into your CSS or design tool.

Common uses

  • Web designers converting color values from design tools like Figma, Adobe XD, or Photoshop (which often output RGB) into CSS code
  • Developers writing stylesheets who need hex notation for HTML and CSS compatibility across all browsers
  • Front-end engineers working with UI component libraries that require hexadecimal color specifications
  • Digital artists and graphics professionals matching screen colors from RGB display values to web-compatible hex codes
  • Web developers debugging CSS by converting color values from browser inspection tools that show RGB format into hex format for code

Frequently asked questions

Why do I need both RGB and HEX formats when they represent the same color?
RGB is the native color model for digital screens and is used by many design and image editing tools, while hexadecimal is the standard notation for web technologies including HTML, CSS, and JavaScript. Having both formats ensures compatibility across different tools and platforms in your workflow.
Is the conversion always 100% accurate?
Yes. RGB and hexadecimal represent the exact same color values—one is simply a different mathematical notation (base-10 versus base-16). The conversion is always lossless with no approximation or rounding involved.
What does the # symbol at the start of a hex code mean?
The hash symbol (#) is a CSS and HTML convention that indicates the following characters represent a hexadecimal color value rather than something else. Without it, a browser would not recognize the string as a color code.
Can I convert colors with transparency or alpha values?
Standard RGB to hex conversion handles opaque colors (RGB values 0-255). For colors with transparency, you would use RGBA (with an alpha channel) or convert to 8-digit hex codes (#RRGGBBAA), which some tools support but the basic converter focuses on standard opaque colors.
What are the valid ranges for RGB values?
Each RGB channel accepts decimal values from 0 to 255, where 0 represents no light and 255 represents maximum light intensity. Any value outside this range is invalid for standard RGB colors.
Does this tool upload my colors or data anywhere?
No. This is a privacy-friendly browser-based tool that runs entirely on your device. All calculations happen locally in your browser, nothing is sent to any server, and no signup or account is required.