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RGB to HEX Converter

RGB to HEX in one step — exact, reversible, nothing uploaded.

  • Runs on your device
  • Exact and reversible
  • Also HSL, OKLCH, LAB and CMYK

Drop a stylesheet or token file

CSS, SCSS, SASS, LESS, JSON, SVG or TXT — up to 10.0 MB

#FF4D4D

Nearest colour name: tomato (Same family, distance 6.4)

RGBrgb(255 77 77)
HEX#FF4D4D
  • HEX#FF4D4D
  • RGBrgb(255 77 77)
  • HSLhsl(0 100% 65.1%)
  • HWBhwb(0 30.2% 0%)
  • HSVhsv(0 69.8% 100%)Not CSS
  • CMYKcmyk(0% 69.8% 69.8% 0%)Not CSS
  • LABlab(59.906 67.771 41.299)
  • LCHlch(59.906 79.363 31.36)
  • OKLABoklab(0.673 0.19441 0.09082)
  • OKLCHoklch(0.673 0.21457 25.04)
  • Display P3color(display-p3 0.9239 0.3574 0.3319)
  • XYZ D65color(xyz-d65 0.45232 0.27107 0.09872)

Contrast

On white3.27:1
Aa
  • AA normalFail
  • AA largePass
  • AAA normalFail
  • AAA largeFail
On black6.42:1
Aa
  • AA normalPass
  • AA largePass
  • AAA normalFail
  • AAA largePass
On your colour3.27:1
  • AA normalFail
  • AA largePass
  • AAA normalFail
  • AAA largeFail

Nearest passing shade — #E22D35 clears 4.51:1 against your comparison colour.

Colour vision

How this colour appears to people with each kind of colour-vision deficiency.

  • Typical vision
  • Protanopia
  • Deuteranopia
  • Tritanopia
  • No colour vision
What are you converting?
Colour value

Any CSS colour syntax, plus cmyk() and hsv().

Edit channels in

Values you type here stay put, even when the colour has no hue to show them on.

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Recent colours
Colours you convert appear here.

How to Use RGB to HEX Converter

  1. Enter RGB values

    Use sliders or number inputs to set Red, Green, and Blue (0–255 each).

  2. View HEX result

    The hexadecimal color code updates automatically in the HEX output field.

  3. Copy or use

    Click Copy to copy the HEX code to your clipboard for CSS or design tools.

Why Convert RGB to HEX?

Converting RGB to HEX enables CSS compatibility, provides compact color representation, facilitates web development, and ensures easy color sharing in digital projects.

Benefits of HEX Format

  • CSS Compatibility: Use HEX codes directly in CSS
  • Compact Format: Shorter representation than RGB notation
  • Web Development: Standard format for web development
  • Easy Sharing: Simple to share and remember
  • Universal Support: Supported by all web browsers

RGB vs HEX: Understanding the Difference

Understanding the differences between RGB and HEX helps you choose the right format for your needs.

RGB Format Characteristics

  • Red, Green, Blue component values
  • Each component ranges from 0 to 255
  • More verbose notation (rgb(255, 0, 0))
  • Standard format for digital design
  • Compatible with all design tools

HEX Format Characteristics

  • Hexadecimal representation of colors
  • Compact format, easy to use in CSS
  • Six-digit format (#RRGGBB)
  • Commonly used in web development
  • Easy to read and remember

Is RGB to HEX exact?

Yes, completely. HEX is not a different colour model — it is the same three RGB channels written in base 16, so nothing is approximated in either direction and converting back returns the number you started with.

  • Three digits or six — #F00 and #FF0000 are the same colour. The short form only works when both digits of each channel match, so #FF4D4D has no three-digit equivalent.
  • Eight digits carry opacity — #RRGGBBAA appends the alpha channel as a fourth byte. CSS writes alpha last; Android writes it first, and this page's Android export accounts for that.
  • Case is cosmetic — #ff4d4d and #FF4D4D are identical to every browser. The uppercase switch is there because most design tools and style guides settle on one.
  • Out-of-range values are clamped, and you are told — rgb(999 0 0) is valid CSS and resolves to pure red. This page converts it and says which channel was clamped, rather than doing it silently.

When to Convert RGB to HEX

Convert RGB to HEX when you need CSS compatibility, compact color representation, or web development format.

Ideal Use Cases

  • Web Development: Use HEX codes in CSS and HTML
  • CSS Styling: Apply colors in stylesheets
  • Color Sharing: Share colors in compact format
  • Digital Projects: Use HEX for web-based projects
  • Programming: Use HEX codes in code and scripts

RGB to HEX Conversion Facts

Understanding these facts helps you make informed conversion decisions.

Key Statistics

  • HEX codes represent RGB values in hexadecimal format
  • Each HEX digit represents 4 bits of color information
  • RGB values range from 0 to 255 for each component
  • HEX format is more compact than RGB notation
  • Both formats represent the same color information

Best Practices

Follow these guidelines for optimal RGB to HEX conversion results.

Quality Considerations

  • Verify RGB values before conversion
  • Use valid RGB ranges (0-255 for each component)
  • Check HEX code format for accuracy
  • Test colors in your target application
  • Consider color space and gamut limitations

When Not to Convert

  • Don't convert if RGB format works for your use case
  • Keep RGB for design tools that require it
  • Avoid conversion if format compatibility isn't needed
  • Don't convert for applications that support RGB directly

Limitations and compatibility

Conversion runs on your device; requires JavaScript and a modern browser.

Powered by optimised image processing algorithms.

The other colour converters

Frequently asked questions

How does the RGB to HEX converter work?

Set Red, Green, and Blue from 0 to 255 with the sliders or number inputs, and the tool instantly converts each value to two hexadecimal digits, producing a six-digit code like #FF5733. A live preview shows the color and one click copies it to your clipboard.

Is RGB to HEX conversion lossless?

Yes. HEX is simply a base-16 way of writing the same 24-bit RGB color, so no color information is lost. Each channel (0-255) maps exactly to a two-digit pair (00-FF), and you can convert back to RGB with identical results.

Can I use the HEX code directly in CSS?

Absolutely. The output is standard #RRGGBB hex, which works directly in CSS, HTML, SVG, and virtually every design tool such as Figma or Photoshop. Paste it into a color property, variable, or swatch without any changes.

What range do the RGB values accept?

Each component (Red, Green, Blue) accepts whole numbers from 0 to 255, representing 8 bits per channel and about 16.7 million possible colors. Values outside this range are clamped to the nearest valid number before conversion.

Why are hex codes preferred for the web?

Hex codes are compact, easy to share, and universally supported by browsers. A single #RRGGBB string is shorter than rgb() notation and simple to store in stylesheets, design tokens, and code, making it the standard for web and UI work.

Is the tool free, private, and mobile friendly?

Yes. The converter is free, and all conversion happens on your device. It works offline once loaded and adapts to phones, tablets, and desktops.

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